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Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk Facebook Instagram

OE Match

OE Match
About OE Match

OE Match for Porsche

OE Match is a specialist replacement-parts brand developed around Porsche applications, covering routine maintenance, mechanical repairs, restoration and difficult-to-source components for classic and modern models. Design911 selects brands for quality and Porsche fitment, with knowledgeable specialists available to help owners and workshops choose suitable parts.

The OE Match story

OE Match is focused on preserving Porsche vehicles by returning hard-to-find and no-longer-available components to the market. Its purpose is to keep Porsche vehicles maintained, repaired, restored and usable for the future, particularly where original components have become expensive, difficult to source or discontinued.

Supplied catalogue information records over 8000 individual part numbers, more than 11,800 OE cross-references and over 100 new products in engineering, while the wider product programme contains more than 9,000 variants; these figures describe different measures of the range. Continuing development involves researching the parts owners and workshops genuinely need, working with specialist manufacturers, reviewing engineering specifications, assessing samples, testing and approving components before release. From small seals, clips and brackets to major mechanical components, the aim is to prevent a difficult-to-source item from holding up an entire repair or restoration: preserving Porsche, one part at a time.

Why choose OE Match for your Porsche

OE Match is a quality aftermarket and OE-equivalent replacement option developed specifically around Porsche applications rather than adapted from a general aftermarket range. Original references, vehicle fitment information, dimensions, materials and component specifications are used to identify suitable replacements for routine service, age-related wear, larger mechanical repairs and restoration work.

Its research, development and quality-control processes assess material and manufacturing quality, dimensions and specification, OE-reference compatibility, vehicle application, fit and function, supplier samples, product consistency, packaging and presentation. Where appropriate, physical inspection and fitment evaluation form part of final approval, and products must meet the programme's requirements before entering the catalogue.

Coverage includes the Porsche 356, 911, 912, 914, 924, 944 and 928, alongside the 964, 993, Boxster 986, 996, Cayenne, Cayman and 997. This gives owners, enthusiasts, independent specialists and professional workshops a Porsche-focused replacement option alongside Genuine Porsche parts. OE Match is intended to provide correctly specified, OE-equivalent replacements with sensible running costs rather than simply serving as a lower-cost alternative. Design911 selects the brands it carries for quality and fitment and can advise customers on suitable options for maintenance, restoration or upgrades.

  • A replacement-parts programme developed specifically around Porsche applications.
  • More than 9,000 product variants within the wider programme.
  • Original Porsche part-number cross-references wherever applicable.
  • Dedicated research, development, sample evaluation and quality-control processes.
  • Classic and modern Porsche coverage for maintenance, repairs and restoration.
  • Development focused on difficult-to-source and discontinued applications.


Categories we stock from this brand

Design911 stocks OE Match across an extensive range of Porsche mechanical, electrical, body, interior and maintenance categories. Original Porsche references help identify replacements where part numbers have been superseded or several versions exist. Always check the model, production year, engine, transmission, side or position, connector type where relevant and individual product notes. Incorrect application, mismatched versions, reused seals or hardware and worn supporting components can cause noise, premature wear, leaks, fitment problems or repeat failures. Safety-critical specifications and installation should be checked by a competent technician.

Engine components 

OE Match engine coverage supports maintenance, repair and rebuilding work, ranging from small retaining hardware and brackets to components associated with the cylinder heads, crankcase, valve train and supporting engine systems.

  • Confirm the engine type, capacity, production year and original reference.
  • Inspect associated seals, fasteners and supporting components during engine work.
  • Check whether components require specialist measuring, machining or installation procedures.


Engine seals and gaskets 

Replacement seals and gaskets help address oil, coolant, air and vacuum leaks throughout classic and modern Porsche engines. The range supports individual repairs as well as more extensive engine resealing and rebuilding projects.

  • Identify the source of a leak before replacing components.
  • Check mating surfaces, housings and fasteners for wear or damage.
  • Use the correct gasket or seal version for the engine and production year.


Cooling systems and radiators 

OE Match cooling-system coverage includes components used to circulate coolant, control temperature and transfer heat away from the engine. These parts support repairs involving radiators, pipework, hoses, fittings and related cooling hardware.

  • Investigate coolant loss, overheating, staining and damaged hoses promptly.
  • Check pressure caps, clips, seals and connecting pipes during cooling-system work.
  • Bleed and refill the system using the correct model-specific procedure.


Oil system components 

Oil-system parts support engine lubrication, oil circulation, filtration and leak repair. Coverage can assist with routine servicing as well as work on oil lines, fittings, housings, seals and associated hardware.

  • Confirm thread sizes, connection types and component position.
  • Inspect flexible lines and seals for age-related hardening or leakage.
  • Verify the required oil specification and system capacity separately.


Transmission and drivetrain 

OE Match transmission and drivetrain parts support manual and automatic gearbox repairs, clutch operation, gear selection and the transfer of power to the driven wheels.

  • Match parts to the exact gearbox or transmission code where specified.
  • Check splines, bearings, seals, joints and supporting hardware for related wear.
  • Diagnose noise, vibration or difficult gear selection before ordering components.


Engine and gearbox mounts 

Replacement mounts help support the powertrain, maintain alignment and control unwanted engine and transmission movement. Worn mounts may contribute to vibration, knocking, drivetrain shunt or unsettled gear changes.

  • Inspect mounts for cracking, collapse, separation and oil contamination.
  • Check mounting bolts, washers, brackets and surrounding hardware.
  • Consider replacing paired mounts together where required by the application.


Suspension and steering 

OE Match suspension hardware and steering components support repairs intended to restore accurate wheel control, alignment and predictable steering response. Coverage includes wear-related items used around suspension joints, mounting points and steering assemblies.

  • Investigate play, knocking, uneven tyre wear and unstable handling.
  • Check left- and right-hand applications and axle position carefully.
  • Arrange wheel alignment after replacing components that affect geometry.


Braking components 

OE Match braking components form part of its Porsche-specific replacement programme. Brake work may address wear, restore stopping performance or prepare a car for fast-road or track use, but the specification of each component must suit the intended application.

  • Symptoms prompting inspection include vibration, longer stopping distances, squealing, pulling to one side, warning lights and visible disc or pad wear.
  • Confirm whether the selected component is an OE-equivalent replacement or a performance upgrade.
  • Check whether new fitting kits, seals, hardware and pad wear sensors are required.


Electrical and ignition

Electrical and ignition coverage supports Porsche repairs involving starting, charging, ignition and engine-management faults. Correct diagnosis is particularly important because wiring, supply voltage, earth connections and other supporting components can produce similar symptoms.

  • Typical symptoms include intermittent no-start, misfires, rough idle, poor charging, warning lights and heat-soak failures.
  • Check the original reference, engine, production year and connector type.
  • Test power supplies, earths and wiring before replacing electrical components.


Sensors and switches 

OE Match sensors and switches provide replacement options for systems that monitor or control engine operation, temperature, pressure, position, lighting and driver warnings.

  • Similar-looking sensors may have different calibrations, connectors or applications.
  • Use fault codes as a diagnostic guide rather than proof that a sensor has failed.
  • Inspect connectors for corrosion, damaged terminals and degraded wiring.


Heating and air conditioning 

Heating, ventilation and air-conditioning components support cabin temperature control, airflow and demisting. The range covers replacement needs involving blower assemblies, controls, ducts, valves, fittings and related hardware.

  • Check whether parts differ between left- and right-hand-drive vehicles.
  • Confirm connector, housing and production-year variations.
  • Refrigerant-system work should be completed by an appropriately qualified technician.


Exhaust components

OE Match exhaust coverage supports repairs to worn, corroded or leaking parts of the exhaust system, together with associated brackets, clamps, seals and fittings.

  • Inspect joints, flanges, fixings and heat shields when replacing exhaust parts.
  • Check emissions equipment and sensor positions for the specific model.
  • Corroded fasteners may require additional hardware during installation.


Rubber seals and hoses

Rubber components are important throughout a Porsche for sealing fluids, air, weather and noise. OE Match coverage assists with replacing hardened, split, swollen, leaking or missing hoses, boots, grommets and sealing profiles.

  • Match the shape, dimensions, connection points and intended fluid or system.
  • Inspect adjoining clips, pipes and sealing surfaces.
  • Age-related rubber deterioration can affect several nearby components at once.


Exterior trim and body components

Exterior and body coverage supports accident repair, cosmetic refurbishment and restoration. It includes replacement needs involving trim, lamps, brackets, fixings, seals and other model-specific body fittings.

  • Confirm body style, side, position, colour and finish where applicable.
  • Check whether clips, seals or mounting hardware are supplied separately.
  • Compare the original component and reference before installation.


Interior components 

OE Match interior products support the repair and restoration of cabin fittings that may have worn, faded, broken or become difficult to source with age.

  • Check colour, finish, side and model-year variations.
  • Inspect clips, brackets and fixing points before fitting replacement trim.
  • Some interior components may differ according to body style or equipment specification.


Service and maintenance parts

OE Match service components support scheduled upkeep across Porsche generations, helping owners and workshops maintain reliability, efficiency and system protection while addressing everyday wear.

  • Hard starting, rough idle, poor fuel economy and warning lights can accompany clogged filters or worn ignition components.
  • Select service items against the exact Porsche model, engine, production year and required specification.
  • Review related seals, hardware and other maintenance items when planning a larger service.


Restoration hardware

Restoration hardware covers the small but essential fasteners, brackets, clips, fittings and retaining components needed to complete repairs accurately and securely.

  • Record the position and orientation of original hardware during dismantling.
  • Check thread, length, finish, quantity and model application.
  • Replacing damaged or heavily corroded hardware can prevent delays during reassembly.


Difficult-to-source and discontinued applications 

A central purpose of the OE Match programme is identifying gaps where original Porsche parts have become difficult to obtain or are no longer available. Reintroduced components can help prevent one missing seal, clip, bracket or mechanical part from delaying an otherwise complete repair or restoration.

  • Use OE cross-references and dimensions to verify the intended application.
  • Check whether the original number has been superseded.
  • Review product-specific fitment notes where several component versions exist.


Brake Pad Wear Sensors 

OE Match brake pad wear sensors provide replacement options for Porsche brake servicing. Sensors may need renewal when pads are replaced or when a worn or damaged sensor causes a brake wear warning.

  • Warning messages with new pads, damaged sensor cables and broken clips warrant inspection.
  • Match the OE reference, caliper application, model year, connector and sensor position.
  • Check the quantity required and whether sensors are included with the selected brake parts.


Engine Electrical 

OE Match engine electrical parts cover starting, charging, ignition, sensor and switch applications. They support repairs involving intermittent no-start, misfires, rough idle, stalling, battery drain, poor charging, warning lights, inconsistent readings and heat-related failures.

  • Similar-looking components may have different electrical or vehicle applications.
  • Repeat faults can indicate a mismatched component or a worn supporting item.
  • Battery condition, earth straps, connectors and voltage drop should be checked during diagnosis.


Service Parts 

OE Match service parts cover everyday maintenance requirements intended to protect the engine, gearbox and other major systems. Routine replacement can address natural wear caused by heat, friction, fluid degradation and environmental exposure.

  • Match filters, ignition parts, belts and fluids to the exact vehicle specification.
  • Many symptoms overlap, so establishing a sound service baseline can assist diagnosis.
  • Keep a service record to support future maintenance and fault finding.


Service Kits 

OE Match service kits group key maintenance components to simplify servicing and establish a known baseline. They are particularly useful when catching up on overdue maintenance or assessing sluggish running, inconsistent idle, poor economy and reduced performance.

  • Match each kit to the exact Porsche model, engine and production year.
  • Contents vary, so review the included components rather than assuming every service item is supplied.
  • Add any required while-you-are-there items, such as spark plugs, belts, fluids, seals or hardware.


Explore the range

Browse the OE Match Porsche range at Design911, then narrow your selection by model and category and cross-check the original part references and fitment notes. Whether you are planning routine maintenance, a workshop repair or a complete restoration, Design911's Porsche specialists can help identify suitable components within a programme focused on fitment, quality and long-term vehicle preservation.

DISPLAYING 8657 to 8672 (of 8702 products)
94330701102/1
Product Information
Product Information
Automatic transmission Oil filter
The 94330701102 OE Match gearbox oil filter is a transmission service component designed for Porsche 911 (964 and 993) models equipped with the Tiptronic automatic gearbox. This filter installs inside the gearbox oil pan at the bottom of the transmission and filters contaminants from the automatic transmission fluid (ATF).

Fits:
Porsche 964 1990 - 1994 Tiptronic gearbox
Porsche 993 1994 - 1997 Tiptronic gearbox

Diagram ref no 9

The Tiptronic transmission uses hydraulic fluid to operate internal components such as clutches and valves. The oil filter removes metal particles, clutch debris and other contaminants from the transmission fluid as it circulates through the system.

Located in the lower section of the gearbox sump, the filter protects sensitive internal components by ensuring only clean fluid passes through the hydraulic system. Over time, filters can become clogged with debris, reducing fluid flow and potentially affecting transmission performance.

The OE Match version of this filter replicates the factory specifications used in Porsche 964 and 993 Tiptronic transmissions, providing a direct-fit solution for transmission servicing.

The gearbox oil filter keeps the transmission fluid clean by trapping contaminants before the fluid is circulated through the transmission’s hydraulic circuits. Clean transmission fluid helps maintain smooth gear changes and protects internal transmission components from premature wear.

Replacing the filter during routine transmission service ensures proper fluid circulation and reliable automatic gearbox operation.

Transmission filters gradually accumulate debris from clutch material and internal wear. If the filter becomes clogged, it can restrict fluid flow and negatively affect shifting performance. Replacing the filter during transmission service helps maintain clean hydraulic fluid and protects the gearbox from premature wear.

When to Replace. Consider replacing the gearbox oil filter when:
• Performing Tiptronic transmission fluid service
• Transmission shifting becomes less smooth or delayed
• The gearbox sump is removed for maintenance
• During gearbox rebuild or overhaul

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94330701102
94330701102
94330701101

The product you are viewing cross references to these numbers
911680AB911
Product Information
Product Information
Gauge Bezels Aluminum.

The OE MATCH Gauge Bezels Aluminium are premium OE-matching trim rings designed to surround and enhance the appearance of the dashboard instrument gauges. Manufactured from high-quality aluminum  , these bezels provide a refined, motorsport-inspired finish while maintaining a factory-correct look that complements the classic Porsche interior.
These Bezels Slip Over The Existing Black Factory Bezels.
Set Of 5 Aluminum Rings.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 911 1978-1989 3.3L Turbo (930)
  • Porsche 964 (911) C2 1989-93
  • Porsche 964 (911) C4 1989-93
  • Porsche 964 (911) RS 3.6L 1991-93
  • Porsche 964 (911) RS 3.8L 1991-93
  • Porsche 964 (911) TURBO 3.3L 1991-93
  • Porsche 964 (911) TURBO 3.6L 1991-93
  • Porsche 993 (911) C2 1994-97
  • Porsche 993 (911) C4 1994-97
  • Porsche 993 (911) RS 1994-97
  • Porsche 993 (911) C2S 1994-97
  • Porsche 993 (911) C4S 1994-97
  • Porsche 993 (911) TURBO 1994-96
  • Porsche 993 (911) GT2 1994-97
  • Porsche 993 (911) TURBO S 1994-97

Designed as a direct replacement or upgrade for worn, faded, or damaged gauge surrounds, the aluminium bezels help restore the appearance of the instrument cluster while adding a subtle touch of visual sophistication. Precision-engineered for accurate fitment, they integrate seamlessly with the dashboard and instrument assembly.

What This Product Does:
  • Frames and enhances the appearance of dashboard gauges
  • Provides a premium aluminium finish to the instrument cluster
  • Restores the original look of worn or damaged gauge surrounds
  • Helps improve dashboard presentation and aesthetics
  • Complements classic Porsche interior styling
  • Provides OE-style fitment and appearance

Symptoms Of Wear Or Failure:
  • Faded or discoloured bezel finish
  • Scratches, dents, or cosmetic damage
  • Corrosion or surface deterioration
  • Cracked or damaged trim rings
  • Loose or poorly fitting bezels
  • Aged appearance reducing dashboard presentation
  • Visible wear affecting the originality of the interior

Why Replacement Matters:
  • Restores a clean and factory-correct instrument cluster appearance
  • Enhances overall dashboard presentation
  • Improves the visual appeal of the cockpit
  • Maintains originality and authenticity for restoration projects
  • Replaces worn, damaged, or corroded trim components
  • Adds a durable and premium aluminium finish
  • Supports concours, restoration, and refurbishment work
  • Helps preserve the value and presentation of classic Porsche interiors



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

911680AB911
911680AB911

The product you are viewing cross references to these numbers
9015514192870K/1
Product Information
Product Information
Carpet retainer just inside the door - Black finish (ribbed)
This Carpet Retainer is an OE-style interior trim strip designed to secure and finish the edge of the carpet along the door sill area in classic Porsche models. Designed for left or right-side fitment, the retainer integrates seamlessly with the vehicle’s interior trim and is typically used in pairs for a complete installation.
Sold each.

Fits:
Porsche 911 1965 - 1989
Porsche 964 >>1990

This OE match carpet retainer is a direct replacement for the original Porsche sill trim strip used in 911 and early 964 models. Installed just inside the door opening, it holds the edge of the interior carpet firmly in place while providing a clean, finished transition between the carpet and door threshold.

Manufactured in a black ribbed finish, this version replicates the factory appearance used in many models, offering both durability and period-correct styling. The ribbed aluminium construction ensures strength while maintaining a lightweight design.

This trim strip secures the carpet edge along the sill, preventing lifting, fraying, or movement. It also enhances the visual finish of the interior by covering raw carpet edges and providing a neat, factory-correct appearance.

Function
• Secures carpet edges along the door sill
• Prevents carpet movement, lifting, or fraying
• Provides a clean and finished interior edge
• Protects carpet from wear at entry points
• Enhances interior appearance with OE-style trim

Carpet retainers are exposed to frequent foot traffic and can become scratched, loose, or corroded over time. A worn or missing retainer can allow the carpet to shift or fray, detracting from the interior’s appearance. Replacing it restores both functionality and the original factory look.

When to replace
•  Carpet edge is loose or lifting
•  Retainer is scratched, bent, or corroded
•  During interior restoration or carpet replacement
•  Missing or incorrectly fitted trim strip
•  Visible wear in door entry areas

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9015514192870K
9015514192870K
90155141950
90155141928

The product you are viewing cross references to these numbers
90155111
Product Information
Product Information
Door Threshold Side Sills Protector, Chrome.

The OE MATCH Door Threshold Side Sills Protector, Chrome are OE-matching trim components designed to protect the painted door sill areas from scuffs, scratches, and wear caused by entering and exiting the vehicle. Finished in an attractive chrome appearance, these threshold protectors enhance the interior presentation while helping preserve the condition of the bodywork beneath.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC

These sill protectors are engineered to provide a precise fit, durable protection, and a factory-correct appearance. Suitable for restoration projects and replacement of worn originals, they help maintain both the aesthetics and value of classic Porsche models.

What This Product Does:
  • Protects door sill paintwork from scuffs and scratches
  • Enhances interior appearance with a chrome finish
  • Covers and protects high-wear entry and exit areas
  • Helps preserve original bodywork condition
  • Provides a factory-style finishing touch to the cabin
  • Supports vehicle restoration and refurbishment projects

Symptoms Of Wear Or Failure:
  • Scratches, scuffs, or surface wear
  • Dents or impact damage
  • Chrome finish becoming dull or pitted
  • Corrosion or tarnishing
  • Loose fitment or lifting edges
  • Missing or damaged mounting points
  • Visible deterioration affecting interior presentation

Why Replacement Matters:
  • Restores protection to vulnerable door sill areas
  • Improves overall vehicle presentation and interior appearance
  • Prevents further damage to painted sill surfaces
  • Maintains factory-correct styling and finish
  • Enhances the value and originality of the vehicle
  • Supports restoration and concours preparation projects
  • Provides durable long-term protection against daily wear
  • Ensures a clean, finished appearance when entering and exiting the vehicle



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90155111
90155111550
90155111650
90155111551
90155111651

The product you are viewing cross references to these numbers
93042340190
Product Information
Product Information
Pedal bushing upgrade kit for LHD and RHD cars.
Note: RHD cars also need Accelerator bell crank bushing 91442321101 which is not in the kit.
Not for Sportomatic SPM cars

Heavy duty brass pedal bushing kit contains:
(x2) Brake Pedal Bushings - 91142354201
(x2) Clutch Pedal Bushings - 91142334102
(x2) Accelerator pedal Bell Crank Bushings - 90142325300
(x1) Clutch Clevis Pin Bushing - 90142343400
(x1) Clutch Pedal Roll/Spring pin - 90030900200

Fits:
Porsche 911 1965-89
Porsche 912
Porsche 930 1976-88
excluding Sportomatic

Worn plastic brake pedal bushings or sticking accelerator bushing cause serious accidents. The ultimate solution is a set of Design 911 precision heavy duty brass pedal bushings. This is a comprehensive pedal box rebuild kit, with seven heavy duty bushings for the clutch cable arm, brake, clutch, and throttle pedals, and a new spring/roll clutch pedal retaining pin.

Sold as a set

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93042340190
91142354200
91142334101
91142334102
90030900200
90142325300
90142334300
91142354201

The product you are viewing cross references to these numbers
91442321000/1
Product Information
Product Information
Replacement rubber pedal cover for clutch or brake.
It’s designed to fit tightly over the pedal arm face, providing the correct grip pattern and cushioning feel underfoot. Ideal for restorations, interior refreshes, or routine servicing, it helps keep pedal operation safe and consistent.
Sold each.

Fits:
Porsche 911 1970 - 1989 RHD or LHD Cars
Porsche 356 1950 - 1965 RHD or LHD Cars
Porsche 914 1970 - 1976 RHD or LHD Cars

Porsche 964 1990 - 1994 LHD Cars
Porsche 993 1994 - 1998 LHD Cars

The pad acts as a grippy wear layer over the pedal surface, improving pedal feel and protecting the metal pedal face from further wear while maintaining the original pedal appearance.

Old pedal rubbers harden, crack, or wear smooth over time, which can reduce grip and driver control. Replacing pad restores safety, improves pedal feel, and refreshes the cabin’s original finish.

When to replace:
• Pedal surface is smooth or slippery
• Rubber is cracked, split, or missing
• Pad feels loose on the pedal
• During interior refresh or pedal box service

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91442321000
91442321000

The product you are viewing cross references to these numbers
91135501202/2
Product Information
Product Information
Brake Master Cylinder, Standard 19mm Bore.

The OE MATCH Brake Master Cylinder, Standard 19mm Bore is a hydraulic braking system component designed to convert brake pedal force into hydraulic pressure, allowing effective operation of the vehicle’s braking system. Featuring a standard 19mm bore, this master cylinder replicates the original factory specification, providing the correct hydraulic balance, pedal feel, and braking performance intended by Porsche.
For Cars With Stop Light Switch.
NOTE: Does Not Come With New Switch. Has To Be Transferred Over Or Bought Separately. Part Number 90161311500

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 914 (1970-1976)  

The master cylinder is engineered for precise brake modulation, reliable fluid pressure generation, and long-term durability. As the central component of the braking system, it distributes hydraulic pressure to the brake calipers or wheel cylinders, ensuring safe and predictable vehicle stopping performance.

What This Product Does:

  • Converts brake pedal force into hydraulic pressure
  • Distributes brake fluid pressure throughout the braking system
  • Provides the correct hydraulic volume for standard braking setups
  • Maintains original factory brake pedal feel and response
  • Supports safe and consistent braking performance
  • Works with dual-circuit braking systems for added safety

Symptoms Of Wear Or Failure:
  • Soft or spongy brake pedal feel
  • Brake pedal slowly sinking under sustained pressure
  • Reduced braking performance or longer stopping distances
  • Brake fluid leakage around the master cylinder
  • Inconsistent brake pressure or uneven braking response
  • Difficulty maintaining hydraulic pressure
  • Brake warning lights illuminating
  • Internal seal deterioration causing fluid bypass and pressure loss

Why Replacement Matters:
  • Restores proper hydraulic brake pressure
  • Improves brake pedal feel and responsiveness
  • Maintains factory braking characteristics and performance
  • Prevents brake fluid leaks and pressure loss
  • Supports safe operation of the dual-circuit braking system
  • Reduces the risk of brake system failure
  • Ensures predictable and consistent stopping performance
  • Helps maintain driver confidence and vehicle safety under all driving conditions



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135501202
91135501202
90135501202
91135501201

The product you are viewing cross references to these numbers
91135501202/1
Product Information
Product Information
Brake Master Cylinder BIG BORE, 23mm High Performance Version.

The OE MATCH Brake Master Cylinder BIG BORE is a hydraulic braking component designed to convert brake pedal force into hydraulic pressure for the vehicle’s braking system. Featuring a larger bore design, this master cylinder is engineered to provide increased fluid displacement, making it particularly suitable for vehicles fitted with upgraded brake calipers or performance braking systems that require greater hydraulic volume.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 914 (1970-1976)  


This is a high performance upgrade to the stock Porsche 911 Master Cylinder for non-power brake applications. The increased 23mm bore (vs. 19mm) should be used on cars that are fitted with 'larger than stock' brakes to increase pedal pressure and feel. Unlike other kits on the market, which require modifications to the lines and the push rod, our Master Cylinder is a direct fit.

The master cylinder is designed to deliver precise brake pedal feel, consistent hydraulic pressure, and reliable braking performance. As the central component of the hydraulic braking system, it plays a critical role in ensuring safe, responsive, and predictable stopping power.

What This Product Does:

  • Converts brake pedal input into hydraulic pressure
  • Supplies brake fluid pressure to the braking system
  • Provides increased fluid displacement through its larger bore design
  • Supports performance and upgraded brake system applications
  • Maintains consistent brake pedal feel and braking response
  • Works with dual-circuit braking systems for enhanced safety

Symptoms Of Wear Or Failure:
  • Soft or spongy brake pedal feel
  • Brake pedal slowly sinking under pressure
  • Reduced braking effectiveness
  • Brake fluid leaks around the master cylinder
  • Inconsistent brake pressure or pedal response
  • Difficulty building hydraulic pressure
  • Brake warning lights illuminating
  • Internal seal wear causing pressure loss between circuits

Why Replacement Matters:
  • Restores correct hydraulic pressure throughout the braking system
  • Improves brake pedal feel and responsiveness
  • Ensures consistent and predictable braking performance
  • Prevents brake fluid leaks and pressure loss
  • Supports safe operation of dual-circuit braking systems
  • Maintains compatibility with performance brake upgrades
  • Reduces the risk of braking system failure
  • Helps preserve driver confidence and vehicle safety under all driving conditions



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135501202
91135501202
91135501202A

The product you are viewing cross references to these numbers
91135290500/1
Product Information
Product Information
Brake caliper seal repair kit.
This OE Match-standard brake caliper seal repair kit is engineered as a direct-fit replacement for the rear brake caliper sealing components on classic Porsche 911 models. This kit supplies the essential gaskets, seals and dust boots needed to rebuild the brake caliper’s sealing surfaces accurately.
Sold per caliper.

rear
Porsche 911 1984-89 (Rear)

This kit is sold on a per-caliper basis - for reconstructing or refreshing one rear brake caliper’s internal seals and dust protection.

In a brake caliper, seals and dust boots play a critical role in maintaining hydraulic integrity and protecting internal components from dirt and moisture. Over time seals can harden, crack or shrink, leading to fluid leaks, reduced braking performance, and uneven pad wear. This kit provides the correct rubber components to refresh the caliper sealing surfaces, allowing pistons to move freely while maintaining fluid pressure and protecting against contamination.

Function
• Hydraulic Seal Function: Prevents brake fluid leakage from the caliper piston bore under pressure.
• Dust Protection: Dust covers keep contaminants out of the caliper internals, reducing corrosion and wear.
• Restore Performance: Helps return caliper piston travel and braking response to as-designed levels.
• Durability: rubber materials resist heat, fluid exposure and aging typical of high-stress brake system environments.

Brake caliper seals and dust boots wear with age and use. When the seals degrade, brake fluid can leak at the caliper piston, reducing hydraulic pressure, degrading braking performance, and potentially causing uneven pad wear or pulling under braking. Dust boots that are cracked or missing allow grit and moisture into the caliper bore, accelerating corrosion and piston binding. Replacing these with an OE Match kit helps restore correct brake function, maintain consistent pedal feel, and extend the life of your brake calipers.

Replace the brake caliper seal kit if you notice:
•  Brake fluid leaks around the caliper piston seal.
•  Spongy or inconsistent brake pedal feel.
•  Uneven pad wear or reduced braking performance.
•  Cracked, hardened or missing dust covers.
•  During a full brake overhaul or rebuild.



Related reference numbers
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91135290500
91135290500

The product you are viewing cross references to these numbers
91135194600/1
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Product Information
Brake Caliper seal repair kit, FRONT.
This brake caliper seal kit is designed to rebuild the front brake calipers of classic Porsche 911 models (1974-89) (non-turbo). It includes all the sealing rings, dust boots, and fasteners necessary to rebuild a single caliper, ensuring proper hydraulic sealing, piston movement, and reliability. Manufactured to original Porsche specifications.
Sold per caliper

front
Porsche 911 1974 - 1989

•  Position on Vehicle: Front axle brake calipers, service train of the front brake system.

•
  Applications: Ideal when the original caliper pistons or seals have been serviced, when you observe brake lever/root pressure changes, when brake fluid contamination has occurred or during a full caliper rebuild.

The sealing components within a brake caliper are critical to safe and effective braking performance. Worn or damaged seals can lead to piston sticking, brake drag, uneven pad wear, reduced braking efficiency or fluid loss. Replacing with a correctly specified rebuild kit restores hydraulic integrity, ensures smooth piston operation and helps maintain your 911’s original braking feel.

When and why to replace:
• Caliper pistons are sticking or moving unevenly.
• Visible damage to dust boots or signs of fluid leakage around the caliper.
• Uneven pad wear or brake performance inconsistency.
• During brake pad or rotor replacement when calipers are open.
• High-mileage vehicles or cars where original seals have not been replaced.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135194600
91135194600

The product you are viewing cross references to these numbers
91135299800/1
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Product Information
Brake caliper seal repair kit, REAR.
OE Match rear brake caliper seal repair kit designed to service the rear brake calipers on classic Porsche 911 (1974–1983) models. Now you can restore your brake calipers performance with our Rebuild Kits. Each kits includes the necessary seals and dust covers that you will need for the rebuild process.
Sold per caliper.

rear
Porsche 911 1974 - 1983

The brake caliper seal kit replaces the internal piston seals, dust boots, and associated rubber components within the rear brake caliper. These seals perform essential functions:
•  Maintain brake fluid integrity inside the caliper piston bore
•  Prevent fluid leakage under hydraulic pressure
•  Protect internal components from dirt, moisture, and debris
•  Enable smooth piston movement for consistent brake pad engagement
•  Help ensure even pad wear and reliable stopping performance.

Over time, original caliper seals harden, crack, or lose elasticity, which can lead to leaking, sticking pistons, uneven braking, and reduced safety.

Function
•  Hydraulic sealing: Ensures brake fluid stays within the caliper bore
•  Piston movement control: Allows smooth, controlled piston travel
•  Dust and dirt exclusion: Prevents contaminants from entering the caliper bore
•  Brake performance preservation: Helps maintain even pad engagement and return.

A properly rebuilt caliper with new seals helps restore brake responsiveness and reduces the risk of brake drag or uneven braking at the rear wheels.

Brake caliper seals are critical for hydraulic braking performance and safety. Old seals often suffer from: • Hardening and cracking due to heat and age • Swelling or deformation from fluid contamination • Loss of elasticity, causing piston bind or leak paths • Corrosion of caliper bores when moisture enters through failed dust boots Worn or leaking seals result in reduced brake performance, fluid leakage, uneven pad wear, brake drag, and compromised stopping power. Replacing them with an OE Match seal kit restores proper fluid retention and piston mobility - increasing safety, consistency, and brake system longevity. When to replace. Install this rear brake caliper seal kit when: • Calipers are leaking fluid around the piston area • Brake pistons stick or bind, causing brake drag • You are performing a full caliper overhaul • Pads and rotors are replaced and calipers are difficult to service • Dust boots are torn, brittle, or missing. A seal kit is a core part of brake caliper rebuilds and should be considered whenever the caliper is disassembled.

Related reference numbers
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91135299800
91135299800

The product you are viewing cross references to these numbers
90135199800/1
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Product Information

Front Brake Caliper Seal Kit for S Type Calipers - 1 kit per caliper - 2 required per car

Maintain safe, reliable and responsive braking performance with Front Brake Caliper Seal Kit, designed for Porsche 911 models equipped with S Type front brake calipers. This comprehensive seal kit contains the essential sealing components required to rebuild and restore original brake calipers, helping preserve hydraulic pressure and ensuring consistent braking performance.

Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera

Brake caliper seals are critical components within the braking system. They seal the hydraulic fluid behind the caliper pistons, allowing braking pressure to be applied efficiently while protecting internal components from dirt, moisture and corrosion. As seals age, they can become brittle, worn or damaged, leading to fluid leaks, sticking pistons and reduced braking performance.

Replacing worn caliper seals is an important part of Porsche brake maintenance and restoration, particularly for classic 911 models where preserving original braking components is often preferred.

What Does a Brake Caliper Seal Kit Do?

A brake caliper seal kit provides the replacement seals required during a brake caliper rebuild. These seals maintain hydraulic integrity within the caliper and ensure the pistons operate smoothly under braking pressure.

A properly rebuilt caliper helps provide:

Consistent hydraulic pressure Reliable braking performance Smooth piston movement Protection against fluid leaks Reduced risk of internal corrosion Extended brake caliper service life

Without effective seals, brake fluid can escape and braking efficiency can be significantly reduced.

Symptoms of Worn or Failing Brake Caliper Seals

Brake caliper seals are constantly exposed to heat, pressure and brake fluid. Over time, the sealing material can deteriorate and lose its ability to maintain proper hydraulic pressure.

Common symptoms of failing caliper seals include:

Brake fluid leaks around the caliper Soft or spongy brake pedal Reduced braking performance Loss of hydraulic pressure Sticking or seized pistons Uneven brake pad wear Brake drag Corrosion around piston surfaces Increased stopping distances Visible deterioration of seals during inspection

If ignored, worn seals can lead to more extensive caliper damage and compromised braking safety.

Why Brake Caliper Seal Replacement Matters

Replacing worn brake caliper seals is one of the most effective ways to restore braking performance and preserve valuable original brake calipers.

Benefits of replacing caliper seals include:

Restored hydraulic efficiency Elimination of brake fluid leaks Improved braking response Better brake pedal feel Reduced brake drag Protection against corrosion Extended caliper lifespan Improved braking safety and reliability

For classic Porsche 911 models fitted with S Type calipers, regular caliper maintenance helps preserve the vehicle's original braking characteristics and driving experience.

Features & Benefits

  • Suitable for Porsche 911 S Type front brake calipers
  • Contains seals required for brake caliper rebuilds
  • Restores hydraulic sealing performance
  • Helps eliminate brake fluid leaks
  • Supports smooth piston operation
  • Protects against moisture and contamination
  • Ideal for brake restoration and maintenance projects
  • Helps extend brake caliper service life       



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90135199800
90135199800

The product you are viewing cross references to these numbers
91135299800/1::1
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Product Information
Brake caliper seal repair kit. REAR
Repair kit designed to rebuild the rear brake calipers of classic Porsche 911 models from the 1969–77. This kit includes all necessary sealing rings, dust boots and associated hardware required to restore proper hydraulic operation and sealing integrity of the “M-type” steel calipers.
Sold per caliper.

rear
Porsche 911 1969-77 REAR.
"M" type The S calipers are aluminium and the M calipers are steel

• Position: Rear axle brake caliper assembly—used to rebuild one caliper (sold each).

•  Applications: Ideal for use when calipers show signs of leakage, piston sticking, seal degradation or during full brake system overhaul/restoration.

Brake caliper seals and boots are crucial for maintaining hydraulic function, preventing fluid leaks and ensuring piston mobility. When seals wear out, you may experience brake drag, uneven pad wear, reduced stopping performance or fluid leakage. Replacing with a correctly specified kit ensures safe, consistent braking under all conditions.

When and why to replace:
• Visible brake fluid leakage around the caliper body or piston boot.
• Caliper pistons sticking or uneven pad wear.
• Brake overhaul where pistons are removed and seals are exposed.
• Restoration of vehicles where the original seal kit has not been replaced in decades.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135299800
90135299800

The product you are viewing cross references to these numbers
90135196411/1
Product Information
Product Information

Porsche Front Brake Caliper Seal Kit - M Type caliper
1 kit per caliper - 2 required per car

Restore the performance and reliability of your braking system with Front Brake Caliper Seal Kit, designed for Porsche 911 models equipped with M Type front brake calipers. This essential brake caliper rebuild kit contains the seals required to overhaul worn or ageing brake calipers, helping restore hydraulic efficiency and ensuring consistent braking performance.
front
Fits:

  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1975 2.7L 

Brake caliper seals play a vital role in maintaining hydraulic pressure within the braking system. They prevent brake fluid leakage, protect internal caliper components from contamination and allow the caliper pistons to move correctly during braking. Over time, exposure to heat, moisture, brake fluid and age can cause seals to harden, crack or deteriorate, compromising braking performance and safety.

Replacing worn caliper seals is a key part of brake system maintenance and restoration, particularly on classic Porsche models where original components may have been in service for decades.

What Does a Brake Caliper Seal Kit Do?

A brake caliper seal kit provides the essential sealing components required to rebuild and restore brake calipers. The seals maintain hydraulic pressure behind the caliper pistons while also preventing dirt, moisture and contaminants from entering the caliper assembly.

Correctly functioning caliper seals help provide:

Reliable hydraulic pressure Consistent braking performance Smooth piston operation Protection against brake fluid leaks Reduced internal corrosion Improved caliper longevity

Without effective seals, brake fluid can escape and braking performance may be compromised.

Symptoms of Worn or Failing Brake Caliper Seals

Brake caliper seals naturally deteriorate over time due to age, heat cycles and exposure to brake fluid.

Common symptoms of worn caliper seals include:

Brake fluid leaks around the caliper Soft or spongy brake pedal Reduced braking performance Loss of hydraulic pressure Uneven brake pad wear Sticking or dragging brakes Contaminated brake components Visible cracking or deterioration of seals Corrosion around caliper pistons Increased stopping distances

In severe cases, seal failure can lead to significant fluid loss and reduced braking safety.

Why Brake Caliper Seal Replacement Matters

Replacing worn brake caliper seals helps restore braking system reliability and prevents more expensive caliper damage.

Benefits of replacing caliper seals include:

Restored hydraulic pressure Elimination of brake fluid leaks Improved braking performance Smoother piston movement Reduced brake drag Improved brake pedal feel Protection against corrosion and contamination Extended brake caliper service life

For classic Porsche 911 models, regular caliper maintenance is essential to maintain the precise braking characteristics and safety standards expected from the vehicle.

Features & Benefits

  • Suitable for Porsche 911 M Type front brake calipers
  • Contains seals required for caliper overhaul and rebuild
  • Restores hydraulic sealing performance
  • Helps eliminate brake fluid leaks
  • Supports smooth piston operation
  • Ideal for brake restoration and maintenance projects
  • Helps extend brake caliper lifespan
  • High-quality replacement sealing components       



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Related, superseded, cross reference or alternative numbers for comparison.

90135196411
90135196411
13.0441.4815.2

The product you are viewing cross references to these numbers
9443514
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Product Information

Front Brake Calipers 

Restore safe, responsive braking performance with Front Brake Calipers, designed for Porsche 924S, Porsche 944 and Porsche 944S models. These front brake calipers are a critical part of the braking system, converting hydraulic pressure from the brake pedal into the clamping force needed to press the brake pads against the brake discs.
front

Fits:

  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88

As the primary braking components at the front axle, the calipers are responsible for delivering much of the vehicle's stopping power. Properly functioning calipers ensure consistent braking performance, balanced stopping force and predictable pedal feel, helping maintain the handling and safety characteristics Porsche engineered into these transaxle sports cars.

Over time, brake calipers can suffer from corrosion, sticking pistons, worn seals and fluid leaks. Replacing worn or damaged calipers helps restore braking efficiency, reduce uneven wear and improve driver confidence.

What Do Front Brake Calipers Do?

Brake calipers form the link between the hydraulic braking system and the brake pads. When the brake pedal is pressed, hydraulic fluid pressure forces the caliper pistons outward, pushing the brake pads against the rotating brake disc.

This process creates friction which slows and stops the vehicle.

A properly functioning front brake caliper helps provide:

Strong and consistent braking performance Accurate pedal response Balanced braking force across the front axle Even brake pad wear Improved vehicle control Reliable stopping power in all driving conditions

Symptoms of Brake Caliper Wear or Failure

Brake calipers operate under extreme conditions and are constantly exposed to heat, moisture, brake dust and road contaminants. As components age, internal pistons and seals can become damaged or seized.

Common symptoms of brake caliper failure include:

Vehicle pulling to one side when braking Uneven brake pad wear Reduced braking performance Soft or inconsistent brake pedal feel Sticking or dragging brakes Excessive brake dust on one wheel Overheating brake discs Brake fluid leaks Squealing or grinding noises Increased stopping distances Burning smell from overheated brakes

If left unresolved, a faulty brake caliper can cause accelerated wear of pads and discs while compromising braking safety.

Why Brake Caliper Replacement Matters

Replacing worn or damaged brake calipers is essential for maintaining safe braking performance and preventing costly secondary damage to other braking components.

Replacement helps:

Restore full braking efficiency Improve pedal feel and braking response Eliminate brake drag and overheating Prevent uneven brake pad wear Reduce brake fluid leakage risks Maintain balanced braking performance Improve vehicle safety and control Protect discs and pads from premature wear

For Porsche 924S, 944 and 944S models, maintaining a healthy braking system is vital for preserving the exceptional handling and driver confidence these vehicles are known for.

Features & Benefits

  • Restores reliable braking performance
  • Supports strong and consistent stopping power
  • Maintains correct pedal feel
  • Helps ensure even brake pad wear
  • Ideal for maintenance, repair and restoration projects
  • Direct replacement for worn or faulty calipers

Keep your Porsche braking system performing at its best with Front Brake Calipers from Design911.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9443514
94435142900
94435143000

The product you are viewing cross references to these numbers
91135242
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Product Information
Brake caliper REAR. 
These are direct replacement calipers for the rear left (part number 91135242500) or rear right (part number 91135242600) side of a mid-1980s Porsche 911. They are manufactured to the dimensions, fitment, and technical specifications of the original. Replacing these calipers restores the correct brake pressure, pad alignment, and brake disc-to-rear wheel contact, restoring braking balance and safety.

rear
Porsche 911 1984 - 1989

Brake calipers are crucial for safe, controlled stopping. Over time, calipers can suffer from corrosion, seized or sticking pistons, worn seals, fluid leakage or uneven pad wear. Especially on aging cars, the rear calipers may lose proper clamping force, causing longer stopping distances, uneven braking, noise or poor pad life.

Replace these calipers when you notice:
• Brake fluid leakage around the caliper body or piston area
• Uneven or rapid pad wear on the rear wheel
• Reduced braking performance, dragging wheel or vibration
• Maintenance/restore of the braking system during a rebuild

Installing a correct-fit caliper restores proper braking clamp, pad and rotor alignment and ensures your classic Porsche retains its intended braking performance and safety.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135242
91135242500
91135242600

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