OE Match

Speedometer reset knob
The OE Match speedometer reset knob is a replacement interior control used to reset the trip odometer on the speedometer in classic Porsche 911 models from 1965 to 1977. This small dashboard component allows the driver to manually reset the trip counter to zero for tracking distance during journeys. Please note Original Porsche part is no longer available.
Sold individually

Fits:
Porsche 911 1965 - 1977

Diagram ref no 3

The speedometer reset knob is a small knurled adjustment knob located on or near the speedometer gauge in early Porsche 911 dashboards. It connects to the trip odometer mechanism and allows the driver to manually reset the distance counter.

The OE Match Speedometer reset knob is designed to replicate the original Porsche component in appearance, size and fitment. It is particularly useful because the original Porsche part is no longer available, making OE-style replacements an important solution for maintenance and restoration of classic models.

The knob allows the driver to reset the trip odometer (day trip counter) to zero. This feature helps drivers track individual journey distances, fuel consumption or maintenance intervals.

Replacing a worn or missing reset knob restores full functionality to the instrument cluster and ensures the trip counter can be operated easily and reliably.

Function
• Trip Odometer Reset: Allows manual reset of the speedometer trip counter
• Instrument Control: Connects to the internal odometer reset mechanism
• Driver Convenience: Enables tracking of trip distance and mileage
• Restoration Fit: OE-style design maintains authentic interior appearance

Over time the small reset knob can become worn, cracked or lost during instrument servicing. Without the knob, the trip odometer cannot be reset easily. Installing a new OE Match replacement restores full functionality of the speedometer system and preserves the authentic interior appearance of classic Porsche models.

Consider replacing the reset knob if you notice:
•  Missing or broken speedometer reset knob
•  Difficulty resetting the trip odometer
•  Worn or damaged instrument control
•  During dashboard or instrument cluster restoration

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90174119122

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Engine Lid To Body Seal.

Restore a secure, properly cushioned seal between the engine lid and surrounding bodywork with this OE Match Engine Lid to Body Seal. Designed for compatible classic Porsche applications, this seal fits around the engine lid opening and provides a flexible barrier between the closing panel and the vehicle body.

Fits:
Porsche 911 1965-73

Diagram Ref No 28

The engine lid seal performs several important functions. It helps prevent water, dirt and road contamination from entering around the lid opening, while also cushioning contact between adjoining panels. When correctly fitted, it contributes to a clean, properly finished engine compartment and helps minimise unwanted vibration and rattling.  

What This Product Does:

• Seals the gap between the engine lid and surrounding bodywork.
• Helps prevent water entering around the engine lid opening.
• Reduces dirt, dust and debris entering through panel gaps.
• Provides cushioning between the engine lid and body.
• Helps reduce unwanted vibration and rattling.
• Supports correct seating of the engine lid when closed.
• Helps protect surrounding painted surfaces from unnecessary contact.
• Contributes to a clean and properly finished engine compartment.
• Replaces a hardened, cracked, flattened, shrunken or missing seal.
• Restores an OE-style appearance for compatible classic Porsche applications.  

Symptoms Of Wear Or Failure:

• Visible cracks or splits in the rubber.
• Rubber that has become hard or brittle.
• Flattened areas that no longer recover after compression.
• Shrinkage creating gaps around the engine lid opening.
• Sections of the seal pulling away from the body.
• Torn or missing sections.
• Water entering around the engine lid.
• Excessive dirt or debris entering the engine compartment.
• Increased rattling or vibration from the engine lid.
• The lid contacting surrounding bodywork.
• Deterioration or discolouration affecting the vehicle's appearance.
• A damaged seal discovered during bodywork or engine compartment restoration.  

Why Replacement Matters:

• The engine lid seal must remain flexible to conform to the shape of the lid and body aperture. Once the rubber becomes hard, compressed or damaged, gaps can develop that reduce its ability to provide effective protection.
• Water entering through these gaps can contribute to corrosion and deterioration of surrounding metalwork, fittings and components. Dirt and debris can also accumulate within the engine compartment, making maintenance more difficult and affecting the appearance of a restored vehicle.
• The seal also acts as a cushion when the engine lid is closed. A deteriorated or missing seal may allow excessive panel movement, contributing to rattles and potentially allowing painted surfaces to contact one another.
• On a classic Porsche, rubber seals are also important visual finishing components. Fresh, correctly fitted sealing rubber provides a much cleaner appearance than an old seal that has cracked, shrunk or become distorted.

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90151290100

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Blanking Plug For Oxygen Sensor Hole.
Securely seal an unused oxygen sensor port with this OE Match Blanking Plug for Oxygen Sensor Hole. Designed for compatible exhaust applications, this plug is used when an oxygen (lambda) sensor mounting hole is present but a sensor is not required for the particular vehicle, exhaust configuration, testing setup or application.  

M 18 x 1,5 x 18
23mm in length

Oxygen sensor ports are threaded openings in the exhaust system that normally accommodate a lambda sensor. When the port is not being used, it must be properly sealed. Leaving the opening exposed can allow hot exhaust gases to escape and may permit moisture and contamination to enter the exhaust system.  

What This Product Does:

• Seals an unused oxygen or lambda sensor mounting hole.
• Prevents exhaust gases escaping through an unused sensor port.
• Helps maintain the integrity of the exhaust system.
• Protects the threaded sensor opening from dirt and contamination.
• Helps reduce moisture entering through an unused port.
• Allows an exhaust component with an oxygen sensor boss to be used where a sensor is not required.
• Provides a removable solution if an oxygen sensor is required later.
• Replaces a missing, damaged or corroded blanking plug.
• Provides an OE-style solution for compatible exhaust applications.  

Symptoms Of Wear Or Failure:

• Exhaust gases leaking around the plug.
• A ticking or blowing noise from the oxygen sensor port.
• Black soot deposits around the plug or threaded opening.
• A strong exhaust smell near the affected area.
• The plug has become loose.
• Visible corrosion or deterioration.
• Damaged or stripped plug threads.
• A plug that can no longer be securely tightened.
• The original blanking plug is missing.
• An oxygen sensor has been removed and the port remains open.
• Heat or exhaust staining around the sensor boss.  

Why Replacement Matters:

• An unused oxygen sensor hole should never be left open during normal engine operation. Exhaust gases are extremely hot and can escape through the opening at high velocity, potentially damaging nearby components and creating excessive noise.
• An exhaust leak can also affect the correct operation of the exhaust system. Depending on the location of the unused port and the vehicle's configuration, unwanted air entering the exhaust may also interfere with exhaust-gas measurements or diagnostic testing.
• The threaded sensor boss itself can deteriorate if left exposed. Dirt, moisture and corrosion may damage the threads, making installation of a future oxygen sensor more difficult or requiring repair of the sensor mounting point.
• A loose or damaged plug can produce similar problems. Soot deposits around the port are often an indication that combustion gases are escaping past the sealing surface or threads.

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333660211

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Front Turn Signal Lens, Yellow, Round. Not E Type Certified.

Restore the appearance and visibility of the front indicator with this OE Match Front Turn Signal Lens. Featuring a round design with a yellow/amber finish, this replacement lens is intended for compatible classic vehicle applications where the original indicator lens has become cracked, faded, damaged or missing.

Fits:
Porsche 356 B/C 1.6 01/59-12/65

Diagram Ref No 21

The turn signal lens covers the front indicator lamp and allows its light to remain clearly visible when signalling a change of direction. It also helps protect the bulb, reflector and internal lamp components from dirt, moisture and road contamination.  

What This Product Does:

• Covers the front indicator lamp assembly.
• Provides a yellow/amber indicator appearance.
• Allows the turn signal to remain visible to other road users.
• Helps communicate intended changes of direction.
• Protects the indicator bulb and internal lamp components.
• Helps reduce exposure to dirt, moisture and road contamination.
• Features a period-style round design.
• Replaces a cracked, faded, broken or missing indicator lens.
• Helps restore a clean and original-style front-end appearance.
• Is suitable for compatible classic vehicle restoration applications.
• Is supplied as a non-E-type-certified component.  

Symptoms Of Wear Or Failure:

• Cracks or splits in the lens.
• A completely broken or missing lens.
• Chips caused by stone impacts.
• Significant fading or discolouration.
• Clouding or deterioration of the lens material.
• Reduced visibility of the indicator light.
• Moisture or dirt entering the lamp assembly.
• Loose or damaged mounting points.
• The lens no longer fitting securely.
• Visible deterioration affecting the vehicle's appearance.
• Damage discovered during restoration of the lighting system.  

Why Replacement Matters:

• Front indicators are important signalling devices that allow other road users to recognise when the driver intends to turn or change direction. A severely faded, damaged or missing lens may reduce the clarity and visibility of the signal.
• A cracked lens can also allow water, dust and road contamination into the lamp assembly. Moisture can contribute to corrosion of bulb contacts, electrical terminals and reflector surfaces, potentially causing intermittent or complete indicator failure.
• If the lens is loose or damaged, continued vibration may cause further deterioration or result in the lens becoming detached from the vehicle.
• For a classic vehicle restoration, indicator lenses are also prominent exterior details. Replacing a faded, cracked or unsuitable lens can significantly improve the appearance of the front lighting installation and help restore a period-correct look.

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64463141106

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Fuel Pump.

Restore dependable fuel delivery and consistent engine operation with this OE Match Fuel Pump. Designed for compatible Porsche applications, the fuel pump is a critical part of the vehicle's fuel system, supplying fuel from the tank toward the engine at the flow and pressure required for correct operation.

Fits:
Porsche 911 3.0L 1980 - 83
Porsche 924 2.0L 1981 >
Porsche 928 4.7L 1981 -83 (M28.11 / M28.12 Engines)
Porsche 911 Turbo 1980 - 89 (front)
Porsche 965 Turbo 3.3 / 3.6 (front)

The engine relies on a continuous and stable fuel supply during starting, idling, acceleration and higher-load driving. If the pump can no longer deliver the required amount of fuel, the engine may become difficult to start, hesitate under acceleration, lose power or stop running altogether.

What This Product Does:

• Transfers fuel from the fuel tank toward the engine.
• Provides the fuel flow required for normal engine operation.
• Helps maintain the required fuel-system pressure for the intended application.
• Supports reliable cold and warm starting.
• Provides fuel during idle, cruising and acceleration.
• Helps maintain consistent engine performance as fuel demand increases.
• Supports correct operation of the vehicle's fuel delivery system.
• Helps prevent fuel starvation caused by inadequate pump output.
• Replaces a worn, damaged, noisy or failed fuel pump.
• Provides an OE-style replacement for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Difficulty starting the engine.
• Extended cranking before the engine starts.
• Engine failing to start despite fuel being present.
• Intermittent starting problems.
• Engine hesitation during acceleration.
• Loss of power under load.
• Poor performance at higher engine speeds.
• Engine cutting out unexpectedly.
• Intermittent stalling.
• Fuel starvation symptoms.
• Unusual buzzing, whining or other noises from the fuel pump.
• Fuel pressure or flow below specification.
• Intermittent pump operation.
• Visible fuel leakage around the pump or connections.
• Electrical testing confirming that the pump is receiving the correct supply but is not operating properly.  

Why Replacement Matters:

• The engine cannot operate correctly without a reliable fuel supply. A weakening fuel pump may provide enough fuel for starting or low-speed operation but struggle to meet demand during acceleration or higher engine loads.
• Insufficient fuel delivery can cause hesitation, poor acceleration, loss of power and stalling. Intermittent pump failure can be particularly troublesome because the vehicle may operate normally at times before unexpectedly cutting out or refusing to restart.
• A complete fuel pump failure can leave the vehicle unable to start or run, potentially resulting in an unexpected breakdown.
• Fuel leakage is even more important to address immediately. Petrol is highly flammable, and any leakage around the pump, hoses or connections can create a serious fire hazard.

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91160810203

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Headlamp With Black Rim For LHD Cars (Non Leveling Type).

Restore dependable forward lighting and the correct period-style appearance with this OE Match Headlamp with Black Rim. Designed for compatible left-hand-drive (LHD) cars, this headlamp is the non-levelling type and features a distinctive black outer rim.

Bulb type: H4 (bulbs not supplied)

Fits:
Porsche 911 1969-86

The headlamp is a critical part of the vehicle's lighting system, illuminating the road ahead during darkness and poor visibility while helping make the vehicle more visible to other road users. Correct beam pattern, alignment and secure mounting are essential for effective nighttime driving.

What This Product Does:

• Provides forward illumination during nighttime driving.
• Improves visibility in dark and low-light conditions.
• Helps make the vehicle visible to other road users.
• Provides the appropriate headlamp configuration for compatible LHD vehicles.
• Features a black rim for the correct exterior appearance.
• Uses a non-levelling configuration for applicable vehicles.
• Supports correct dipped and main-beam operation when fitted with the appropriate lighting components.
• Allows the beam to be correctly aimed during installation.
• Replaces a damaged, corroded or deteriorated headlamp assembly.
• Helps restore the vehicle's original-style front-end appearance.
• Provides an OE-style replacement for compatible applications.  

Symptoms Of Wear Or Failure:

• Cracked, chipped or broken headlamp glass or lens.
• Poor or noticeably reduced light output.
• Clouding or deterioration affecting illumination.
• Moisture or persistent condensation inside the headlamp.
• Corrosion within the reflector or housing.
• A dull or damaged reflector surface.
• Damaged or seized beam adjustment mechanisms.
• Headlamp beam that cannot be correctly aligned.
• Loose or damaged mounting points.
• Headlamp movement or vibration while driving.
• Damage to the black rim or surrounding assembly.
• Accident or stone-impact damage.
• Electrical connections or internal components damaged beyond practical repair.
• An incorrect headlamp type fitted during a previous repair or restoration.  

Why Replacement Matters:

• Effective headlamps are essential for safe nighttime driving. Reduced light output limits the driver's ability to identify bends, road markings, pedestrians, obstacles and other hazards early enough to react safely.
• A damaged lens or housing can allow moisture into the headlamp. Continued moisture exposure may deteriorate the reflector, electrical contacts and other internal components, progressively reducing lighting performance.
• Correct beam alignment is equally important. A headlamp that cannot be properly adjusted may provide inadequate road illumination or create excessive glare for oncoming drivers.
• Using the correct LHD headlamp specification is particularly important because headlamp beam patterns are designed around the vehicle's intended traffic environment. An unsuitable headlamp configuration may produce an incorrect beam pattern and could fail to meet applicable roadworthiness requirements.
• For classic vehicle restoration, the headlamp also has a major visual impact. The black rim contributes to the intended front-end appearance, making the correct assembly important for both function and presentation.

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91163111302

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Camshaft Adjuster.
Sold each - 2 required per car.
Restore accurate variable valve timing and dependable engine performance with this OE Match Camshaft Adjuster. Designed for compatible Porsche engine applications, the camshaft adjuster forms part of the engine's variable valve timing system and changes camshaft position relative to the crankshaft according to operating conditions.  

Fits:
Porsche 958 4.8L Cayenne S 2011-14
Porsche 958 4.8L Cayenne GTS 2013-14
Porsche 958 4.8L Cayenne TURBO 2011-18
Porsche 970 3.6L Panamera 2010-16
Porsche 970 4.8L Panamera S 2010-13
Porsche 970 4.8L Panamera GTS 2013-16
Porsche 970 4.8L Panamera TURBO 2010-16

Diagram Ref No 9

Modern engines can alter camshaft timing to optimise valve operation at different engine speeds and loads. The camshaft adjuster responds to the engine management system and associated oil-pressure control, advancing or retarding camshaft timing as required. This helps the engine balance low-speed torque, higher-speed performance, efficiency and emissions.  

What This Product Does:

• Forms part of the engine's variable valve timing system.
• Adjusts camshaft position relative to the crankshaft.
• Advances or retards valve timing according to engine operating conditions.
• Works with the engine management and oil-control systems.
• Helps optimise valve timing across different engine speeds and loads.
• Supports strong and consistent engine performance.
• Helps improve low-speed response and higher-speed efficiency.
• Contributes to smooth engine operation and efficient combustion.
• Helps the engine maintain the commanded camshaft timing.
• Replaces a worn, sticking, damaged or malfunctioning camshaft adjuster.
• Provides an OE-style replacement for compatible Porsche engine applications.  

Symptoms Of Wear Or Failure:

• Check engine or engine-management warning light.
• Camshaft timing or correlation fault codes.
• Rattling or abnormal mechanical noise from the timing system.
• Noise particularly noticeable during engine start-up.
• Rough or unstable idle.
• Engine misfires.
• Hesitation or poor throttle response.
• Reduced engine power.
• Inconsistent power delivery.
• Increased fuel consumption.
• Difficulty starting the engine.
• Engine running differently at particular speeds or loads.
• Actual camshaft position failing to match the commanded position during diagnostic testing.
• Excessive play, sticking or physical damage discovered during timing-system inspection.  

Why Replacement Matters:

• Accurate camshaft timing is essential for correct valve operation. The camshaft adjuster allows the engine to alter this timing dynamically rather than relying on one fixed setting for every operating condition.
• If the adjuster sticks or develops excessive wear, the camshaft may remain too far advanced or retarded. This can affect cylinder filling, combustion and exhaust flow, resulting in reduced performance, rough running and increased fuel consumption.
• A mechanically worn adjuster may also generate rattling or knocking noises. Continued operation with a timing-system fault can place additional stress on related components and may contribute to more extensive timing-system deterioration.
• In engines where piston-to-valve clearance is limited, serious mechanical timing errors can potentially result in internal engine damage. For this reason, persistent timing faults or abnormal timing-system noises should not be ignored.
• Replacing a defective component with this OE Match Camshaft Adjuster helps restore accurate variable valve timing, consistent engine response and dependable operation of the associated timing system.

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Replacement water pump comes with a gasket and METAL impeller.
The water pump product code 996 106 011 57, is also known as a coolant water pump supplied with gasket, ensuring seal integrity. Porsche specialist typically recommended this is checked or replaced every 60,000 miles or 4–5 years, whichever comes first, as part of routine maintenance to prevent sudden failure. It’s best practice to replace the thermostat, gaskets, and serpentine belt at the same time for a comprehensive cooling system refresh. Our kits bundle all these components.

Fits:
Porsche 996 Carrera C2/C4 (1997–2001 3.4L; 2002–2005 3.6L)
Porsche Boxster 986 (all models, 2.5L, 2.7L , 3.2S, 1997–2004)

Common issues & symptoms:

•   Overheating & Rapid Deterioration: If the pump fully fails, coolant circulation stops, leading to overheating—which can cause serious engine damage.
•   Strange Noises: Squealing, creaking, or grinding noises can indicate bearing failure or internal damage within the pump.
•   Coolant Leaks: A failing or worn water pump may begin leaking coolant, often noticeable as puddles beneath the rear of the vehicle or in the engine bay.
•   Accessory Belt Problems: A failed pump can throw off the serpentine drive belt, potentially causing accessory drive issues.
•   Maintenance Insights Proactive Replacement: Given the catastrophic failure risk and potentially swift progression from minor to major leaks, many enthusiasts and mechanics recommend replacing the water pump pre-emptively at the 60,000-mile interval.

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99610601157

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Front Bonnet For The Early Porsche 911's Long Bonnet Type, Reproduction.
Restore the distinctive appearance and correct front body profile of an early Porsche 911 with this OE Match Reproduction Front Bonnet. Designed for compatible early Porsche 911 models using the long-bonnet configuration, this reproduction panel provides a replacement solution for an original bonnet that is corroded, damaged, distorted, previously repaired or missing.

Fits:
Porsche 911 1965-73

Material: Steel

The long bonnet is one of the defining exterior features of early Porsche 911 models. It forms the upper closure of the front luggage compartment and contributes significantly to the characteristic proportions, panel lines and appearance of the vehicle.  

What This Product Does:

• Replaces the long-type bonnet on compatible early Porsche 911 models.
• Covers and protects the front luggage compartment.
• Restores the characteristic early 911 long-bonnet exterior profile.
• Provides the foundation for correct bonnet-to-wing and body panel gaps.
• Works with the appropriate hinges, latch, seals and associated hardware.
• Allows normal access to the front luggage compartment.
• Replaces a corroded, accident-damaged, distorted or missing bonnet.
• Provides a practical solution for body restoration projects.
• Helps return a modified or damaged vehicle to an early long-bonnet appearance.
• Is supplied as a reproduction replacement panel.

Symptoms Of Wear Or Failure:

• Significant corrosion or rust.
• Perforation caused by advanced corrosion.
• Accident or impact damage.
• Large dents, creases or distortion.
• Poor bonnet-to-body alignment.
• Uneven panel gaps that cannot be corrected through normal adjustment.
• Damage around the hinge mounting areas.
• Damage or deformation around the latch area.
• Previous repairs that have significantly distorted the panel.
• Cracking or deterioration around repaired sections.
• A bonnet that no longer opens or closes correctly due to panel damage.
• An incorrect bonnet fitted during a previous restoration or modification.
• A missing original bonnet during a restoration project.

Why Replacement Matters:

• The front bonnet is a major exterior body panel and has a significant influence on both the appearance and functionality of an early Porsche 911.
• Severe corrosion can weaken mounting, edge or latch areas and make permanent repair increasingly difficult. Likewise, badly distorted accident damage can prevent the bonnet from aligning correctly with the surrounding wings and body panels.
• Correct fit is especially important around the latch mechanism. A bonnet that does not latch securely or has damaged mounting areas requires immediate attention, as reliable bonnet retention is essential during vehicle operation.
• For restoration projects, panel shape and alignment are also fundamental to achieving a high-quality finished result. The long bonnet creates a prominent part of the early 911's characteristic front-end styling, so incorrect contours or inconsistent panel gaps can be particularly noticeable.

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PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.

Distributor Drive Belt.
Restore reliable distributor drive operation and accurate ignition timing with this OE Match Distributor Drive Belt. Designed for compatible Porsche ignition applications, this belt forms part of the distributor drive mechanism and ensures that the associated distributor components rotate in the correct relationship to engine operation.

Fits:
Porsche 911 1978-89

The distributor plays a critical role in delivering ignition to the cylinders at precisely the right time. Where a drive belt is incorporated within the distributor assembly, the condition of that belt is essential to maintaining correct synchronisation. A worn, stretched, cracked or broken belt can disrupt distributor operation and lead to ignition timing problems, misfires or loss of correct ignition distribution.  

What This Product Does:

• Forms part of the distributor's internal drive mechanism.
• Transfers rotational movement between associated distributor components.
• Maintains correct synchronisation within the distributor assembly.
• Supports accurate ignition distribution to the engine cylinders.
• Helps maintain correct ignition timing.
• Supports smooth and consistent engine operation.
• Helps prevent ignition irregularities caused by a deteriorated drive belt.
• Replaces a cracked, stretched, hardened, worn or broken distributor belt.
• Provides an OE-style replacement for compatible Porsche ignition systems.
• Is suitable for preventative maintenance during distributor rebuilding or servicing.

Symptoms Of Wear Or Failure:

• Engine misfires or irregular running.
• Rough or unstable idle.
• Reduced engine performance.
• Hesitation during acceleration.
• Poor throttle response.
• Difficulty starting the engine.
• Intermittent ignition problems.
• Incorrect or unstable ignition timing.
• Uneven ignition operation between cylinders.
• Visible cracks or deterioration in the belt.
• Missing or damaged belt teeth where applicable.
• Belt stretching, looseness or excessive wear.
• Hardened or brittle belt material.
• A completely broken distributor drive belt.
• Age-related deterioration discovered during distributor servicing.

Why Replacement Matters:

• Correct ignition timing is fundamental to engine performance. The spark must occur at the appropriate point in the combustion cycle, and the distributor drive mechanism must remain correctly synchronised for this to happen consistently.
• A worn or stretched distributor belt may introduce unwanted movement or incorrect synchronisation within the distributor. This can contribute to inconsistent ignition, rough running, reduced power and poor throttle response.
• More significantly, a belt that breaks can interrupt the intended operation of the distributor assembly. Depending on the ignition-system configuration, this may result in serious misfiring or loss of correct ignition to affected cylinders.
• Age is an important consideration with distributor drive belts. Rubber components can deteriorate even on vehicles covering relatively little mileage. Years of exposure to engine-bay temperatures can cause the belt material to harden, crack and lose flexibility, increasing the likelihood of failure.

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Replacement camshaft.
The camshaft controls valve timing by actuating the valve train in sync with the crankshaft, ensuring correct breathing and engine operation. These OE Match camshafts are manufactured to replicate the original Porsche cam profile, journal dimensions, and key mounting/drive features for direct installation in compatible Porsche 964 engines.

Fits:
Porsche 964 C4 / C4 1989 - 1994
Porsche 964 C2 1990 - 1994 TIPTRONIC
Porsche 964 Carrera RS 1992

Diagram ref no 29

The camshaft opens and closes the intake/exhaust valves at precisely timed intervals, managing airflow through the engine. Replacing a worn camshaft helps restore correct valve timing behaviour, improving drivability, efficiency, and overall engine smoothness.

Function: Driven by the engine timing system, the camshaft’s lobes convert rotational motion into controlled valve lift. Correct cam geometry is essential for proper combustion, stable idle, and consistent performance throughout the rev range.

Camshafts wear over time from mileage, oil quality issues, or lubrication breakdown - leading to reduced valve lift, noisy valve train operation, and performance loss. Installing an OE Match replacement restores correct valve actuation and helps protect the rest of the valve train from abnormal wear.

When to replace:
• Visible lobe/journal wear, scoring, or pitting
• Excessive valve train noise traced to cam wear
• Engine rebuild/overhaul
• Persistent performance loss linked to valve timing/lift issues
• Oil contamination or lubrication failure events

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96410524

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Camshaft, For Engines With Mechanical Fuel Injection Pump.
Restore accurate valve-train operation and correct compatibility with the mechanical fuel injection system using these OE Match Camshafts for engines equipped with a Mechanical Fuel Injection (MFI) pump.

Material: Steel

Fits:
Porsche 911S 1965-73
Porsche 911 Carrera 2.7L 1974-77

The camshaft is a precision internal engine component responsible for controlling the opening and closing of the intake and exhaust valves. Its carefully designed lobes determine valve lift, duration and timing, ensuring that each valve operates at the correct point in the engine's combustion cycle.

What This Product Does:

• Control the opening and closing of the intake and exhaust valves.
• Are intended for compatible engines fitted with a mechanical fuel injection pump.
• Maintain correct valve timing relative to crankshaft position.
• Determine valve lift through the shape of the cam lobes.
• Determine how long the valves remain open.
• Work with the rocker arms and associated valve-train components.
• Help coordinate engine operation with the requirements of the MFI system.
• Support efficient cylinder filling and exhaust gas evacuation.
• Help maintain consistent combustion and engine performance.
• Influence engine torque, power delivery and throttle response.
• Replace worn, damaged or unsuitable existing camshafts.
• Provide an OE-style solution for compatible Porsche MFI engine rebuilds.

Symptoms Of Wear Or Failure:

• Ticking, tapping or abnormal valve-train noise.
• Reduced engine power or acceleration.
• Poor throttle response.
• Rough or inconsistent engine operation.
• Engine misfires or uneven cylinder performance.
• Difficulty maintaining correct valve clearances.
• Reduced valve lift.
• Flattened or excessively worn cam lobes.
• Pitting, scoring or deterioration of the cam surfaces.
• Abnormal wear on rocker arms or other mating components.
• Excessive wear of the camshaft journals.
• Metallic particles discovered in the engine oil or filter.
• Visible camshaft damage during engine disassembly.

Why Replacement Matters:

• The camshaft determines when and how far the engine's valves open, making its condition fundamental to correct engine breathing and combustion.
• If a cam lobe becomes worn, the corresponding valve may not open as far as intended or may effectively remain open for a shorter period. This can restrict cylinder filling or exhaust flow, resulting in reduced power, rough running and inconsistent performance.
• Correct specification is particularly important on an engine fitted with mechanical fuel injection. The MFI system is mechanically coordinated with engine operation, and the correct camshaft configuration must be used for the intended engine and injection arrangement. An incorrect or unsuitable camshaft can compromise the relationship between valve operation, engine speed and fuel delivery.
• Camshaft deterioration can also damage associated components. Worn or pitted cam surfaces may accelerate rocker-arm wear, while metallic debris produced by deteriorating components can circulate through the engine lubrication system.

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