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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 +443456003478 https://www.design911.co.uk Facebook Instagram

Rohler

Rohler
About Rohler

Rohler for Porsche

Rohler parts for Porsche models from Design911

A Quick Look at Rohler

Rohler information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where Rohler is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.

  • Typical reasons to choose these parts include resolving wear-related problems, restoring consistent operation, and using known, correctly fitting components during routine Porsche maintenance.
  • Common symptoms that lead to replacement can include noise, leaks, play in moving parts, or intermittent electrical or hydraulic faults depending on the component type.
  • Always match your Porsche model/year and, where possible, cross-check OEM part numbers to confirm you have the correct application.
  • When fitting new components, replace critical consumables such as seals, clips, and bolts so the repair lasts and doesn’t have to be revisited.
  • Address underlying issues like worn mounts, misalignment, or contamination so the new part is not blamed for an unresolved root cause.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Engine Rebuild Parts — Engine rebuild parts are typically used during planned overhauls or when symptoms point to internal wear, such as loss of compression, excessive oil consumption, persistent leaks, abnormal noises, or contamination found during inspection. On Porsche engines, these parts are often renewed together while the engine is apart to reduce the chance of repeat strip-downs and to improve long-term reliability after the rebuild.

  • Before committing to an engine rebuild, carry out compression and leak-down tests, inspect bores with a scope, and check the oil/filter for metallic debris.
  • Plan to replace “while you’re in there” items like chains, guides, seals, bearings, gaskets, and critical hardware to make the most of the labour involved.

Camshaft covers / Gaskets — Camshaft covers and gaskets are usually replaced to cure oil leaks and tidy up the engine, especially on older or heavily heat-cycled Porsche engines. Hardened or shrunken gaskets, warped covers, and damaged sealing surfaces can all lead to leaks that cause smells, smoke from oil on hot components, and difficulty tracing other potential leak sources.

  • Do not rely on simply tightening bolts to stop leaks; follow the correct torque settings and replace gaskets while checking cover flatness and sealing surfaces.
  • Inspect the breather or PCV system and crankcase ventilation, as excess pressure can worsen oil leaks around cam covers and gaskets.

Engine Tuning — Engine tuning components are chosen to improve drivability, throttle response, and performance, or to support hardware changes such as intakes, exhausts, or forced induction on Porsche engines. Tuning is also used to smooth out flat spots, refine cold or hot running, and optimise how the engine behaves after significant repairs or modifications, provided the mechanical condition is sound.

  • Before tuning, confirm good engine health with checks on compression, fueling, sensor data, cooling, oil temperatures, and that there are no boost or vacuum leaks.
  • Remember that tuning cannot fix mechanical faults; resolve any underlying issues first to avoid masking problems or reducing reliability.

Camshaft Covers — Camshaft covers themselves are replaced when they are cracked, warped, or no longer provide a reliable sealing surface, often together with new gaskets. On Porsche engines this is a common job during top-end work, helping to control oil leaks, reduce smells and smoke, and keep the engine bay clean for easier inspection and maintenance.

  • When renewing camshaft covers, check for warping, damage around bolt holes, and brittle seals, and follow the specified torque pattern to avoid distortion.
  • It is good practice to inspect the breather/PCV system at the same time, as restricted breathing can contribute to recurring leaks around the top end.

Interior & Accessories — Interior parts and accessories are changed to refresh worn touch points, repair broken trim, or add practical storage and comfort upgrades inside your Porsche. Replacing tired components and upgrading key areas can significantly improve the feel of the cabin without altering the car’s core character.

  • Many interior parts are model-year specific, so always check compatibility details and part references to ensure correct fitment.
  • Use suitable trim tools and replace missing or damaged clips and fasteners during installation to minimise the risk of new rattles or loose panels.

Explore Rohler at Design911

View the current Rohler range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

DISPLAYING 1 to 16 (of 262 products)
1 2 3 4 >>
90006721102Tx24
Product Information
Product Information
Titanium Driveshaft Bolts M8 x 50
The ROHLER Titanium Driveshaft Bolt Kit includes 24 lightweight M8 x 50 titanium bolts, providing a complete high-quality replacement set for the driveshaft / CV joint mounting hardware on Porsche 911 models from 1974 to 1989. Designed as an upgraded replacement for Porsche part 90006721102, these bolts offer excellent strength, corrosion resistance, and reduced weight compared with standard steel fasteners.
SET OF 24 BOLTS

Fits:
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera MANUAL cars 24 per car (Not Turbo)
Porsche 911 1978-1983 3.0L / SC MANUAL cars 24 per car (Not Turbo)
Porsche 911 1984-1986 3.2L (Not Turbo) 24 per car
Porsche 911 1987-1989 3.2L G50 (Not Turbo) 24 per car

Diagram ref no 3

This set secures the driveshaft / CV joint assemblies in place, maintaining correct clamping force and helping reduce movement, vibration, or loosening under load.

Key Features & Benefits
Complete set of 24 titanium driveshaft bolts
•  Premium ROHLER performance hardware
•  Direct replacement for Porsche 90006721102
•  Lightweight, strong, and corrosion resistant
•  Ideal for CV joint service, driveshaft replacement, or restoration
•  Suitable for road, performance, and motorsport applications

Why Replacing Driveshaft Bolts Matters
Driveshaft bolts are subjected to high torque loads, constant vibration, and repeated heat cycles. Over time, original fasteners can corrode, stretch, or suffer thread damage, reducing their ability to maintain the correct clamping force. Replacing the complete set during driveshaft or CV joint servicing helps ensure secure installation, reliable drivetrain performance, and long-term safety.

When to Replace Driveshaft Bolts
  During driveshaft or CV joint replacement
  When replacing CV boots
  If original bolts are corroded, damaged, or have worn threads
  If bolt heads are rounded or show signs of stretching
  During drivetrain restoration or performance upgrades
  Whenever new CV joints or driveshafts are installed

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

90006721102Tx24
90006721109
90006721102
90006721101
N0147513

The product you are viewing cross references to these numbers
90006721102Tx12
Product Information
Product Information
Titanium Driveshaft Bolts, M8 x 50
The ROHLER Titanium Driveshaft Bolt Kit includes 12 high-strength M8 x 50 titanium bolts, providing a complete replacement set for the driveshaft (CV joint) mounting hardware on selected Porsche models. These bolts are a direct replacement for Porsche part number 90006721102, offering exceptional strength, outstanding corrosion resistance, and a significant weight saving compared with conventional steel fasteners.
SET OF 12 BOLTS

Fits:
Porsche 964 (911) C4 1989-93 FRONT  12 per car
Porsche 964 (911) C4 1989-93 REAR 12 per car

Porsche 993 (911) C4 1994-97 REAR 12 per car
Porsche 993 (911) C4S 1994-97 REAR 12 per car
Porsche 993 (911) TURBO 1994-96 REAR 12 per car

Porsche Boxster 986 2.5L 1997-99 REAR 12 per car
Porsche Boxster 986 2.7L 1999-02 REAR 12 per car

Porsche 996 C4 3.4L 1997-08/01 FRONT 12 per car
Porsche 996 C4 3.6L 09/01-2005 FRONT 12 per car
Porsche 996 C4S 3.6L 09/01-2005 FRONT 12 per car
Porsche 996 TURBO 2000-05 FRONT 12 per car

Diagram ref no 3

A complete set of 12 ROHLER titanium driveshaft bolts (M8 x 50), designed as direct replacements for Porsche part number 90006721102. Securely fastens the driveshaft (CV joint) assemblies to the drivetrain, maintaining the correct clamping force for reliable torque transmission while helping reduce movement and vibration under load.

Key Features & Benefits
•  Complete set of 12 titanium driveshaft bolts
•  Premium ROHLER aerospace-grade titanium construction
•  Direct replacement for Porsche 90006721102
•  Lightweight with an excellent strength-to-weight ratio
•  Outstanding resistance to corrosion and fatigue
•  Precision-machined for OEM-quality fitment
•  Ideal for road, track, and motorsport applications

Why Replacing Driveshaft Bolts Matters
Driveshaft bolts are subjected to high torque loads, constant vibration, and repeated heat cycles. Over time, original fasteners can corrode, stretch, or suffer thread damage, reducing their ability to maintain the correct clamping force. Replacing the complete set during driveshaft or CV joint servicing helps ensure secure installation, reliable drivetrain performance, and long-term safety.

When to Replace Driveshaft Bolts
  During driveshaft or CV joint replacement
  When replacing CV boots
  If original bolts are corroded, damaged, or have worn threads
  If bolt heads are rounded or show signs of stretching
  During drivetrain restoration or performance upgrades
  Whenever new CV joints or driveshafts are installed

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

90006721102Tx12
90006721109
90006721102
90006721101
N0147513

The product you are viewing cross references to these numbers
90006721102T
Product Information
Product Information
TITANIUM Driveshaft Bolt - M8 x 50
The ROHLER Titanium Driveshaft Bolt (M8 x 50) is a premium lightweight replacement fastener designed for securing the driveshaft (CV joint) on a range of classic and modern Porsche models. It is designed as a direct replacement for Porsche part number 90006721102.
Supplied as a single bolt

Fits:
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera MANUAL cars 24 per car (Not Turbo)
Porsche 911 1978-1983 3.0L / SC MANUAL cars 24 per car (Not Turbo)
Porsche 911 1984-1986 3.2L (Not Turbo) 24 per car
Porsche 911 1987-1989 3.2L G50 (Not Turbo) 24 per car

Porsche 964 (911) C4 1989-93 FRONT  12 per car
Porsche 964 (911) C4 1989-93 REAR 12 per car

Porsche 993 (911) C4 1994-97 REAR 12 per car
Porsche 993 (911) C4S 1994-97 REAR 12 per car
Porsche 993 (911) TURBO 1994-96 REAR 12 per car

Porsche Boxster 986 2.5L 1997-99 REAR 12 per car
Porsche Boxster 986 2.7L 1999-02 REAR 12 per car

Porsche 996 C4 3.4L 1997-08/01 FRONT 12 per car
Porsche 996 C4 3.6L 09/01-2005 FRONT 12 per car
Porsche 996 C4S 3.6L 09/01-2005 FRONT 12 per car
Porsche 996 TURBO 2000-05 FRONT 12 per car

Diagram ref no 3

The driveshaft bolt secures the driveshaft (CV joint) to the drivetrain assembly, maintaining the correct clamping force to minimise movement and ensure reliable transmission of engine torque to the wheels.

Key Features & Benefits
  Premium ROHLER titanium construction
  Direct replacement for Porsche 90006721102
  Lightweight with an excellent strength-to-weight ratio
  Outstanding corrosion resistance
  Precision-machined for OEM-style fitment
  Suitable for road, fast road, and motorsport applications
  Sold individually (purchase the required quantity for your vehicle)

Why Replacing Driveshaft Bolts Matters
Driveshaft bolts are subjected to high torque loads and constant vibration. During driveshaft or CV joint servicing, Porsche recommends inspecting the mounting hardware, and replacing worn or damaged bolts helps maintain the correct clamping force and reduces the risk of loosening during operation. High-quality replacement bolts are particularly important on performance and high-mileage vehicles.

When to Replace Driveshaft Bolts
•  During CV joint or driveshaft replacement
•  When replacing CV boots
•  If the original bolts are corroded, damaged, or have worn threads
•  If bolt heads are rounded or show signs of stretching
•  During drivetrain restoration or performance upgrades
•  Whenever the original fastening hardware no longer meets specification

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

90006721102T
90006721109
90006721102
90006721101
N0147513

The product you are viewing cross references to these numbers
99957107602/1
Product Information
Product Information
Titanium Headlamp removal tool socket wrench
The ROHLER Titanium Headlamp Removal Tool Socket Wrench is a premium replacement tool designed for removing and installing the headlamp units on Porsche 996 and 986 Boxster models. Based on Porsche reference 99957107602, this specialist socket wrench is used to release the factory headlight locking mechanism, allowing safe access for bulb replacement, headlamp servicing, or front-end maintenance.

Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 996 1998 - 2005 all models

A ROHLER titanium headlamp removal socket wrench designed as a specialist service tool for Porsche 996 and 986 Boxster models. It releases and secures the headlamp locking mechanism, allowing the headlamp unit to be removed or refitted safely and correctly during servicing.

Key Features & Benefits
  Premium ROHLER titanium construction
  Replacement for Porsche reference 99957107602
  Designed for headlamp removal and installation
  Lightweight, strong, and corrosion resistant
  Helps prevent damage to the headlamp locking mechanism
  Ideal for workshops, enthusiasts, and restoration tool kits

Functions
•  Used to release the headlamp locking mechanism
•  Helps remove the headlamp unit safely and correctly
•  Suitable for front lighting service and bulb replacement
•  Helps avoid damage caused by using incorrect tools
•  Useful for workshop, restoration, or owner maintenance
  Replaces missing, worn, or damaged original headlamp tools

Why Replace This Tool?
The original headlamp removal tool can be lost, damaged, rounded, or missing from the vehicle tool kit. Without the correct socket wrench, removing the headlamp may be difficult and can risk damage to the locking mechanism or headlamp housing. Replacing the tool ensures the headlamp can be removed properly when service is required.

When to Use This Tool
•   Headlamp bulbs are being replaced
•   The headlamp unit needs to be removed
•   Front lighting repairs are being carried out
•   The headlamp housing is being replaced or inspected
•   The original tool is missing from the vehicle
•   The locking mechanism needs to be released correctly
•   The car is undergoing Porsche 996 or 986 lighting service.

Where it is used on the car
This tool is used at the front headlamp locking mechanism on Porsche 996 and 986 Boxster models. It operates the socket-style release system used to unlock the headlamp assembly.

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

99957107602
99957107602

The product you are viewing cross references to these numbers
9441055451T/2
Product Information
Product Information

944 2-in-1 Performance Cam Wheel (+2° / +4°)

Unlock additional performance from your Porsche 944 engine with this innovative 2-in-1 Performance Cam Wheel, engineered to optimise camshaft timing and deliver measurable improvements in both torque and horsepower. Featuring two pre-set timing advance positions (+2° and +4°) within a single camshaft sprocket, this clever design allows owners to tailor engine characteristics for either road or track use without the complexity or expense of a fully adjustable cam gear.

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 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988

Diagram Ref No 17

By simply rotating the cam wheel 180 degrees during installation, you can select either the +2° or +4° timing position, making this a cost-effective performance upgrade that offers greater flexibility than a standard replacement camshaft wheel.

Even better, the price is lower than many genuine replacement camshaft sprockets while delivering real-world performance gains proven on the rolling road.

Why Adjust Camshaft Timing?

The camshaft and crankshaft work together through the timing belt to control valve opening and closing events. While Porsche factory timing settings provide a good balance for production vehicles, they are often no longer optimal after years of service or engine rebuilding.

Several factors can alter the original camshaft timing:

Cylinder Head Resurfacing

During engine rebuilds, cylinder heads are often skimmed to restore flatness. Many Porsche 944 engines have had this procedure performed multiple times throughout their lives.

Each resurfacing operation slightly alters the relationship between the crankshaft and camshaft, affecting valve timing and engine efficiency.

Hydraulic Tappet Wear

Over time, natural wear and operational changes within the hydraulic tappets can influence valve timing characteristics, reducing engine responsiveness and performance.

Manufacturing Tolerances

Even when new, production tolerances can result in small variations in camshaft timing from engine to engine.

This performance cam wheel compensates for these variables by subtly repositioning the camshaft relative to the crankshaft, advancing intake valve opening events to improve cylinder filling and increase engine output.

Dyno-Proven Performance Gains

Extensive rolling road testing has demonstrated clear performance improvements over the original factory camshaft timing.

+4° Setting

The +4° position provides the greatest torque increase in the lower and mid-range rev band.

Benefits include:

  • Up to 10 Nm increase in torque
  • Improved acceleration
  • Stronger mid-range response
  • Enhanced road driving characteristics
  • Improved flexibility during everyday driving

Peak gains are achieved up to approximately 5000 RPM.

+2° Setting

The +2° position also produces a significant torque increase but is optimised for higher engine speeds.

Benefits include:

  • Improved upper RPM performance
  • Increased peak horsepower
  • Strong high-rev power delivery
  • Enhanced track performance
  • Improved top-end engine response

Above approximately 5000 RPM, the +2° setting delivers the strongest horsepower gains.

Which Setting Should You Choose?

+4° Position – Ideal for Road Cars

The +4° setting is recommended for:

  • Fast road use
  • Daily driving
  • Touring
  • Improved drivability
  • Enhanced low and mid-range torque

This setting delivers a more responsive engine where it is used most often on the road.

+2° Position – Ideal for Track Use

The +2° setting is recommended for:

  • Motorsport applications
  • Track days Competition use
  • High RPM operation
  • Maximum peak horsepower

Drivers seeking ultimate top-end performance will benefit most from this configuration.

Simple Installation

Unlike many performance camshaft timing solutions, this cam wheel retains the original timing reference marks on both sides.

This allows:

  • Straightforward installation
  • Accurate timing belt alignment
  • Easy selection of either timing position
  • Factory-style installation procedures

The wheel is designed to fit directly in place of the original component.

Corrosion-Resistant Construction

Manufactured from steel and galvanised for corrosion protection, the cam wheel is built for long-term reliability and durability.

The kit also includes a new locating wedge to ensure accurate positioning and installation.

Package Contents

Supplied complete with:

  • 1 x Galvanised Steel Performance Cam Wheel
  • 1 x New Camshaft Locating Wedge

Installation Information

Approximate installation time: 1 hour Timing belt removal required Timing belt re-tensioning required after installation Ideal upgrade when replacing the timing belt Suitable to combine with routine maintenance work

Professional installation is recommended if you are unfamiliar with Porsche timing belt procedures.



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

9441055451T
94410554513
94410554503

The product you are viewing cross references to these numbers
987997RSSTRAP
Product Information
Product Information

RS Pullstrap Conversion Kit 

Transform your Porsche interior with the ultimate RS Pullstrap Conversion Kit for the Porsche 987 Boxster, Cayman and 997. Developed to replicate one of the rarest and most desirable factory interior options, this conversion allows you to recreate the iconic GT and RS-inspired door card appearance while maintaining full functionality and a premium factory-style finish.

Fits:

  • Porsche Boxster 987 2.7L 2005-08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08
  • Porsche 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT3 / GT3 RS 2007-09
  • Porsche 997 MK1 GT2 2007-09
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII GT3 / GT3 RS 2010-11
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12

Originally offered as a lightweight alternative to the conventional interior door handle, the Porsche Pull Strap Handle was a highly sought-after option found on select GT and RS models. Due to its rarity and distinctive motorsport character, it has become one of the most desirable interior upgrades available for Porsche enthusiasts.

The RS Pullstrap instantly transforms the feel of the cockpit, adding an authentic motorsport-inspired touch while enhancing the visual appeal of the cabin. Whether you're building a GT3 RS-inspired road car, a lightweight track machine or simply upgrading your Porsche interior, this conversion delivers a dramatic improvement in both aesthetics and driver engagement.

The Ultimate GT Door Card Conversion

Our RS Pullstrap Conversion Kit has been extensively reverse engineered to fully understand the original design, mounting arrangement and operating mechanism.

Unlike many incomplete alternatives, this package provides everything required to convert your existing door cards into authentic RS-style door cards while retaining your existing interior trim.

The result is a clean, professional installation that looks and feels like a genuine factory option.

Why Choose an RS Pullstrap Conversion?

The RS Pullstrap was originally developed by Porsche as a lightweight replacement for the standard door handle assembly.

Benefits include:

  • Authentic Porsche GT and RS styling
  • Lightweight motorsport-inspired design
  • Improved interior aesthetics
  • Enhanced driver engagement
  • Factory-inspired appearance
  • Rare and desirable OEM-style feature
  • Direct compatibility with 987 and 997 models

The pull straps provide a unique tactile experience that immediately changes the feel and character of the cabin.

Key Advantages

Our conversion kit has been engineered to simplify installation while maintaining factory-quality results.

No New Door Spear Required

Unlike many conversion kits, there is no need to purchase an additional door spear assembly.

Benefits include:

  • Reduced conversion cost
  • Simplified installation
  • Retention of original trim components
  • Factory-style fitment

No Hinge Replacement Required

The original hinge can be modified to accommodate the conversion.

Benefits include:

  • Retains existing hardware
  • Lower installation costs
  • Reduced parts requirements
  • Faster installation process

This makes the conversion significantly more accessible than many alternative RS door card solutions.

What's Included?

The complete conversion kit contains:

  • RS Shroud
  • 2 x Pull Straps
  • All Fixings Required for Installation

Everything required to complete the conversion is included within the package.

Motorsport-Inspired Interior Styling

The RS Pullstrap conversion creates a more focused, driver-oriented environment while maintaining the quality and practicality expected from a Porsche interior.

Important Information

Please note:

  • These kits are made to order
  • Returns cannot be accepted unless the product is damaged or faulty
  • All products are carefully inspected for damage and fitment prior to dispatch
  • Professional installation is recommended for best results       

9961112XXXXKIT.2
Product Information
Product Information
Upgrade your exhaust system with this high-performance Rohler Titanium Exhaust Silencer Bracket, engineered for strength, weight reduction, and long-term durability. Designed as a direct replacement for factory mounts, this premium bracket fits both left and right sides, making it a versatile solution for a wide range of Porsche models. It has all stud combinations from 6 different exhaust brackets. All bolts, nuts, sleeves and wire mesh dampers are supplied with this kit.


Fits:
Porsche 996 C2 / C4 3.4L 1998-2001 (96.01 / 96.02 / 96.04)
Porsche 996 GT3 1999-2005 (96.76 / 96.79)
Porsche 996 C2 / C4 / C4S 3.6L 2001-05 (M96.03)
Porsche 997.1 C2 / C4 3.6L 2004-08 (M96.05)
Porsche 997.1 C2S / C4S 3.8L 2004-08 (M97.01)

Diagram Ref no 23 (LEFT) or 28 (RIGHT).


Crafted from lightweight, corrosion-resistant titanium, it offers superior resistance to heat and road conditions compared to standard steel brackets—ideal for both daily driving and performance applications. Its universal design ensures compatibility across all Porsche 996 and 997 models (excluding Turbo variants), providing a reliable and precise fit without modification.

This Rohler bracket replaces multiple genuine Porsche part numbers, simplifying sourcing while maintaining OEM-level fitment and function.



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

9961112XXXXKIT.2
99611122702
99611122802
99611122703
99611122803
99611122700
99611122701
99611122800
99611122801
99611123702
99611123802
99611123703
99611123803
99611123704
99611123804
99711122930
99611123000
90037810501
90037818301
99611123100
90038000501

The product you are viewing cross references to these numbers
9961112XXXXKIT
Product Information
Product Information
Upgrade your exhaust system with this high-performance Rohler Titanium Exhaust Silencer Brackets, engineered for strength, weight reduction, and long-term durability. Designed as a direct replacement for factory mounts, this premium bracket fits both left and right sides, making it a versatile solution for a wide range of Porsche models. Each bracket has all stud combinations from 6 different exhaust brackets.


Fits:
Porsche 996 C2 / C4 3.4L 1998-2001 (96.01 / 96.02 / 96.04)
Porsche 996 GT3 1999-2005 (96.76 / 96.79)
Porsche 996 C2 / C4 / C4S 3.6L 2001-05 (M96.03)
Porsche 997.1 C2 / C4 3.6L 2004-08 (M96.05)
Porsche 997.1 C2S / C4S 3.8L 2004-08 (M97.01)

Diagram Ref no 23 (LEFT) or 28 (RIGHT).


Crafted from lightweight, corrosion-resistant titanium, it offers superior resistance to heat and road conditions compared to standard steel brackets—ideal for both daily driving and performance applications. Its universal design ensures compatibility across all Porsche 996 and 997 models (excluding Turbo variants), providing a reliable and precise fit without modification.

This Rohler bracket replaces multiple genuine Porsche part numbers, simplifying sourcing while maintaining OEM-level fitment and function.



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

9961112XXXXKIT
99611122702
99611122802
99611122703
99611122803
99611122700
99611122701
99611122800
99611122801
99611123702
99611123802
99611123703
99611123803
99611123704
99611123804

The product you are viewing cross references to these numbers
9961112XXXX
Product Information
Product Information
Upgrade your exhaust system with this high-performance Rohler Titanium Exhaust Silencer Bracket, engineered for strength, weight reduction, and long-term durability. Designed as a direct replacement for factory mounts, this premium bracket fits both left and right sides, making it a versatile solution for a wide range of Porsche models. It has all stud combinations from 6 different exhaust brackets.
You will need 2 of those.

Fits:
Porsche 996 C2 / C4 3.4L 1998-2001 (96.01 / 96.02 / 96.04)
Porsche 996 GT3 1999-2005 (96.76 / 96.79)
Porsche 996 C2 / C4 / C4S 3.6L 2001-05 (M96.03)
Porsche 997.1 C2 / C4 3.6L 2004-08 (M96.05)
Porsche 997.1 C2S / C4S 3.8L 2004-08 (M97.01)

Diagram Ref no 23 (LEFT) or 28 (RIGHT).


Crafted from lightweight, corrosion-resistant titanium, it offers superior resistance to heat and road conditions compared to standard steel brackets—ideal for both daily driving and performance applications. Its universal design ensures compatibility across all Porsche 996 and 997 models (excluding Turbo variants), providing a reliable and precise fit without modification.

This Rohler bracket replaces multiple genuine Porsche part numbers, simplifying sourcing while maintaining OEM-level fitment and function.



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

9961112XXXX
99611122702
99611122802
99611122703
99611122803
99611122700
99611122701
99611122800
99611122801
99611123702
99611123802
99611123703
99611123803
99611123704
99611123804

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HORN-WIRE-EXTENSION
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Product Information
When fitting a steering wheel extender, the factory horn wire may no longer reach. This extension cable provides the additional length required to ensure proper horn functionality.

Fits:
Porsche 993 Carrera 1994-98
Porsche 993 Turbo 1995-98

Porsche 986 Boxster 1997-04

Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05 
Porsche 996 GT3 2000-05 


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HORN-WIRE-EXTENSION
3607609961
STSPACER993986996

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922421255CL/1
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Product Information

Porsche 928 Flexplate Clamp Upgrade - Permanent Solution to the 928 Flexplate Problem

Protect Your V8 Engine from Catastrophic Failure

The Porsche 928 V8 engine is known for its performance and engineering excellence, but it also has a well-documented weakness known as the flexplate problem. If left unaddressed, this issue can lead to severe internal engine damage and complete engine failure.

Fits:

  • Porsche 928 4.5L 1978-82
  • Porsche 928S 4.7L 1981-83
  • Porsche 928S2 4.7L 1984-86
  • Porsche 928S4 5.0L 1987-92
  • Porsche 928GT 5.0L 1989-91
  • Porsche 928GTS 5.4L 1992-95

Diagram Ref No 25

This upgraded flexplate clamp is engineered as a functional and permanent solution to prevent crankshaft end float movement and protect the axial thrust bearings.

What the Flexplate Problem Is

In the Porsche 928 automatic transmission setup, the flexplate connects the crankshaft to the torque tube driveshaft. If the clamping system fails or loosens, the crankshaft can be forced forward under load.

When this happens:

  • The axial crankshaft thrust bearings wear rapidly
  • Excessive crankshaft end float develops
  • The crankshaft moves forward into the engine block
  • The lower block can be permanently damaged

It only takes 3 to 5 mm of forward crank movement for catastrophic damage to occur. Once the crankshaft bores into the block, the engine is effectively written off.

What This Upgraded Flexplate Clamp Does

This redesigned clamp secures the original flexplate clutch sleeve correctly and evenly, preventing forward crankshaft movement.

Unlike other aftermarket solutions, this clamp design focuses purely on mechanical integrity and correct force distribution.

Key design improvements include:

  • Three precision-machined circular segments that fit perfectly around the original flexplate sleeve
  • Even clamping force across all segments
  • Three high-strength M8 12.9 grade socket head bolts
  • Torque specification of 60Nm for secure fastening
  • Compact, lightweight design to reduce centripetal forces

Why Other Designs Can Fail

Many flexplate clamp designs use two-piece clamping systems around a three-segment shaft. Basic vector force analysis shows that this design cannot distribute compression force evenly across all segments.

Uneven force distribution leads to:

  • Inconsistent clamping pressure
  • Potential loosening over time
  • Continued crankshaft movement risk

Even Porsche’s original clamp used a simpler two-segment design with a single bolt.

This upgraded clamp eliminates uneven load distribution by using a three-part circular design with equalised clamping forces.

Why You Should Upgrade

You should strongly consider installing this flexplate clamp if:

  • You own a Porsche 928 with automatic transmission
  • Your engine has never had the flexplate fix performed
  • You are rebuilding or restoring a 928 V8
  • You want preventative protection against thrust bearing failure
  • You are experiencing signs of crankshaft end float

Symptoms of flexplate issues may include:

  • Unusual engine noises
  • Difficulty maintaining correct crankshaft end play
  • Thrust bearing wear during engine rebuild
  • Visible crankshaft forward movement

Installing this upgraded clamp holds the driveshaft securely as originally intended and eliminates the flexplate problem completely when correctly fitted.

Engineering Focused on Functionality

This clamp was developed with one goal: to solve the mechanical weakness permanently.

  • Stronger materials than factory design
  • Reduced mass to minimise centrifugal stress
  • Balanced clamping across all segments
  • Designed for durability under high rotational loads

It provides a long-term preventative solution that protects one of the most valuable components of your 928 — the engine block itself.

Key Benefits at a Glance

  • Permanent solution to the Porsche 928 flexplate problem
  • Prevents crankshaft forward movement
  • Protects thrust bearings and engine block
  • Even three-point clamping design
  • High-strength 12.9 grade bolts
  • Lightweight and mechanically balanced
  • Designed for long-term engine protection       



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

922421255CL
92242125500

The product you are viewing cross references to these numbers
9441055451T/1
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Product Information

Adjustable Camshaft Sprocket - Precision Cam Timing Adjustment for Performance and Reliability

This adjustable camshaft sprocket is designed for Porsche 924S, 944 2.5 8V and 944 Turbo models. It allows precise adjustment of camshaft timing to optimise torque delivery, correct timing deviation after engine work and enhance overall driving characteristics.

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 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988

Diagram Ref No 17

Engineered as a direct replacement for the original cam pulley, it installs easily and includes a new key and camshaft bolt for safe assembly.

What an Adjustable Camshaft Sprocket Does

The camshaft sprocket controls the timing relationship between the crankshaft and camshaft. By adjusting cam timing, you influence when the valves open and close relative to piston position.

This affects:

  • Torque delivery
  • Throttle response
  • Powerband characteristics
  • Maximum horsepower
  • Engine drivability

By advancing or retarding the camshaft timing, you can shift the torque band higher or lower in the RPM range depending on your intended use.

Adjustability Range and Features

  • Adjustable from -4° to +5° camshaft timing
  • Degree markings for accurate setting
  • Original zero position retained +3° to +4° is typically ideal for most street setups
  • Maximum adjustment range prevents valve-to-piston contact
  • Adjustment possible while mounted on the camshaft
  • No need to modify the distribution cover
  • Safe to tune without a rolling road

The designed adjustment range ensures you cannot rotate the sprocket far enough to cause engine damage under normal use.

Why You May Want to Upgrade

Correct Timing After Head Work

Many Porsche 924S and 944 engines have had cylinder heads skimmed during overhaul. When material is removed, the head sits lower, slightly retarding cam timing. This adjustable sprocket allows you to correct timing precisely and restore factory performance.

Compensate for Manufacturing Variations

Even factory sprockets can vary slightly in keyway positioning. This gear allows fine correction for accurate timing alignment.

Performance Tuning

If you are running:

  • A performance camshaft
  • Engine modifications
  • Increased boost on a Turbo
  • Higher compression setup

An adjustable camshaft sprocket becomes essential for optimising performance.

Street vs Racing Setup

For street use:
Advancing the cam (+3° to +4°) increases torque in the 2000 to 3500 RPM range, improving daily drivability and throttle response.

For racing use:
Retarding or advancing timing toward +5° can move peak torque higher in the RPM range for greater top-end performance.

You can safely experiment and feel the difference without needing a dyno session.

Superior Construction and Durability

This sprocket uses the original toothed outer design to maintain correct belt engagement but improves the internal core strength.

Key upgrades include:

  • High-quality steel core stronger than original
  • Reinforced keyway to prevent tearing under load
  • TriPass Yellow Special galvanised coating for corrosion resistance
  • Four high-strength 10.9 M8 Allen bolts for secure clamping
  • Cleanly centred for smooth rotation

The original sprocket’s common weak point was the keyway, which could fail under poor assembly or high stress. This upgraded version significantly improves durability.

Package Contents

  • Adjustable camshaft sprocket
  • New original key
  • New camshaft bolt
  • User manual (in Dutch)

Reusing old keys or bolts can lead to failure, which is why new components are supplied.

Key Benefits at a Glance

  • Adjustable cam timing from -4° to +5° Safe adjustment range prevents valve damage
  • Ideal after cylinder head machining Improves torque and drivability
  • Suitable for street and racing use
  • Stronger core and reinforced keyway
  • Corrosion-resistant finish
  • Direct replacement with easy assembly       



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9441055451T
94410554513
94410554503

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996107032RS
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Product Information

Racing Oil Sump Pan - Ultimate Oil Starvation Prevention for Track and Fast Road Use

The Racing Oil Sump Pan is a performance upgrade designed to address one of the most common and serious issues affecting Porsche 911 M96 and M97 engines – oil starvation.

Fits:

  • Porsche 996 C2 3.4L 1997-08/01
  • Porsche 996 C4 3.4L 1997-08/01
  • Porsche 996 C2 3.6L 09/01-2005
  • Porsche 996 C4 3.6L 09/01-2005
  • Porsche 996 C4S 3.6L 09/01-2005
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08

Care should be taken when used on road due to reduced ground clearance

Developed through extensive research and real-world data logging this racing sump is engineered to significantly reduce or eliminate the extreme oil pressure drops caused when the oil pump draws air under high cornering loads.

For dedicated track engines, a Racing Sump is considered essential. For aggressively driven road cars, it is strongly recommended.

What a Racing Oil Sump Does

The oil sump, also known as the oil pan, stores and supplies engine oil to the oil pump. Under normal road driving conditions, the factory sump performs adequately. However, during hard cornering, heavy braking or sustained high lateral G forces, oil can move away from the pickup point.

When this happens, the oil pump can draw air instead of oil (aeration), causing a sudden drop in oil pressure.
Even brief oil pressure loss can lead to:

  • Bearing wear
  • Scored crank journals
  • Engine overheating
  • Catastrophic engine failure

The Racing Sump is designed to control oil movement inside the sump, keeping the oil pickup submerged during extreme driving conditions.

Why M96 and M97 Engines Suffer Oil Starvation

Oil starvation is the most common cause of engine failure seen in M96 and M97 engines. Through extensive testing and analysis, this issue is entirely preventable.

Under aggressive driving or track use, standard sump designs allow oil surge away from the pickup. Data logging has shown that these conditions can create extreme pressure drops indicative of the oil pump sucking air.

By combining:

  • A Racing Sump
  • High quality 50W or 60W oil (depending on engine temperature)
  • Oil filled to the maximum safe level

Testing has demonstrated that pressure drops can be significantly reduced or eliminated.

Why You Should Upgrade to a Racing Sump

Upgrading to a racing oil sump is highly recommended if you:

  • Track your 996 or 997.1 
  • Drive aggressively on road
  • Own a rebuilt or performance-built M96/M97 engine
  • Want to prevent costly engine failure
  • Value long-term engine reliability

Considering the cost of a full engine rebuild, this upgrade is a preventative investment that protects against one of the most well-known Porsche flat-six weaknesses.

At Design911, we supply performance components designed to improve reliability and longevity of Porsche engines. The Racing Oil Sump is a proven solution backed by extensive real-world testing and data analysis.

For dedicated track builds, this upgrade is essential. For fast road cars, it offers invaluable peace of mind.



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

996107032RS
99610703155
99610703157
99610703158
99610703160
99610703154

The product you are viewing cross references to these numbers
996107031RS
Product Information
Product Information

Racing Oil Sump Pan - Ultimate Oil Starvation Prevention for Track and Fast Road Use

The Racing Oil Sump Pan is a performance upgrade designed to address one of the most common and serious issues affecting Porsche M96 and M97 engines – oil starvation.

Fits:

  • Porsche Boxster 986 2.5L 1997-99
  • Porsche Boxster 986 2.7L 1999-02
  • Porsche Boxster S 986 3.2L 1999-02
  • Porsche Boxster 986 2.7L 2003-04
  • Porsche Boxster S 986 3.2L 2003-04
  • Porsche Boxster 987 2.7L 2005-08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08

Care should be taken when used on road due to reduced ground clearance

Developed through extensive research and real-world data logging this racing sump is engineered to significantly reduce or eliminate the extreme oil pressure drops caused when the oil pump draws air under high cornering loads.

For dedicated track engines, a Racing Sump is considered essential. For aggressively driven road cars, it is strongly recommended.

What a Racing Oil Sump Does

The oil sump, also known as the oil pan, stores and supplies engine oil to the oil pump. Under normal road driving conditions, the factory sump performs adequately. However, during hard cornering, heavy braking or sustained high lateral G forces, oil can move away from the pickup point.

When this happens, the oil pump can draw air instead of oil (aeration), causing a sudden drop in oil pressure.
Even brief oil pressure loss can lead to:

  • Bearing wear
  • Scored crank journals
  • Engine overheating
  • Catastrophic engine failure

The Racing Sump is designed to control oil movement inside the sump, keeping the oil pickup submerged during extreme driving conditions.

Why M96 and M97 Engines Suffer Oil Starvation

Oil starvation is the most common cause of engine failure seen in M96 and M97 engines. Through extensive testing and analysis, this issue is entirely preventable.

Under aggressive driving or track use, standard sump designs allow oil surge away from the pickup. Data logging has shown that these conditions can create extreme pressure drops indicative of the oil pump sucking air.

By combining:

  • A Racing Sump
  • High quality 50W or 60W oil (depending on engine temperature)
  • Oil filled to the maximum safe level

Testing has demonstrated that pressure drops can be significantly reduced or eliminated.

Why You Should Upgrade to a Racing Sump

Upgrading to a racing oil sump is highly recommended if you:

  • Track your 986 or 987.1 Boxster/Cayman
  • Drive aggressively on road
  • Own a rebuilt or performance-built M96/M97 engine
  • Want to prevent costly engine failure
  • Value long-term engine reliability

Considering the cost of a full engine rebuild, this upgrade is a preventative investment that protects against one of the most well-known Porsche flat-six weaknesses.

At Design911, we supply performance components designed to improve reliability and longevity of Porsche engines. The Racing Oil Sump is a proven solution backed by extensive real-world testing and data analysis.

For dedicated track builds, this upgrade is essential. For fast road cars, it offers invaluable peace of mind.



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

996107031RS
99610703155
99610703157
99610703158
99610703160

The product you are viewing cross references to these numbers
9973612000X0
Product Information
Product Information
Lightweight Titanium wheel bolts in Silver finish for Porsches 986 / 996 / 997 / 991 / 981 / 992 / 718 / 970

PACK OF 20
x10 bolts 7 mm longer than standard wheel bolts
x10 bolts 15 mm longer than standard wheel bolts


Lightweight Titanium wheel bolts 2/3 of the weight of the factory wheel bolts.

This is a simple replacement lug bolt set for today's water cooled Porsches. It uses the factory style floating ball seat and utilizes a 19mm head like the stock lug bolt. 

FEATURES
Factory Floating Ball Seat
All Titanium Grade 5
Reduced rotational weight
Corrosion resistant

Fits:
All Porsches from 1998 onwards
(not for cars with centre lock wheels) 



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

9973612000X0
99736120000
99736120302

The product you are viewing cross references to these numbers
9973612000XB
Product Information
Product Information
Lightweight Titanium wheel bolts in Black finish for Porsches 986 / 996 / 997 / 991 / 981 / 992 / 718 / 970

PACK OF 20
x10 bolts 7 mm longer than standard wheel bolts
x10 bolts 15 mm longer than standard wheel bolts

Lightweight Titanium wheel bolts 2/3 of the weight of the factory wheel bolts.

This is a simple replacement lug bolt set for today's water cooled Porsches. It uses the factory style floating ball seat and utilizes a 19mm head like the stock lug bolt. 

FEATURES
Factory Floating Ball Seat
All Titanium Grade 5
Reduced rotational weight
Corrosion resistant

Fits:
All Porsches from 1998 onwards
(not for cars with centre lock wheels) 



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

9973612000XB
WHT006978
99736120302

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