OE Match

Engine cylinder head inlet valve
Manufactured to OEM specifications, this valve matches the factory dimensions, seat angle, and stem diameter for perfect sealing and valve timing accuracy. Built from high-grade heat-resistant steel, it delivers excellent thermal stability and wear resistance, ideal for the demanding environment of Porsche’s high-revving flat-six engines.

Fits:
Porsche 964 C2/C4 3.6L 1990-94
Porsche 911 3.3L Turbo 1978-89
911 (964), 3.3 Turbo M 30.69
911 (964), 3.3 Turbo S M 30.69S
911 (964), 3.6 Carrera M 64.01/M 64.02
911 (964), 3.6 Carrera M 64.01/M 64.02
911 (964), 3.6 Carrera 4 M 64.01
911 (964), 3.6 Carrera RS M 64.03
911 (964), 3.6 Turbo M 64.50
911 Cabriolet (964), 3.6 Carrera M 64.01/M 64.02
911 Cabriolet (964), 3.6 Carrera M 64.01/M 64.02
911 Cabriolet (964), 3.6 Carrera 4 M 64.01
911 Speedster (964), 3.6 CarreraM 64.01/M 64.02
911 Speedster (964), 3.6 CarreraM 64.01/M 64.02
911 Targa (964), 3.6 Carrera M 64.01/M 64.02
911 Targa (964), 3.6 Carrera M 64.01/M 64.02
911 Targa (964), 3.6 Carrera 4 M 64.01

Valve head diameter 9,00 mm
Valve stem diameter 9,00 mm
Valve shaft length 110,10 mm
Valve seat angle 45 °

Diagram Ref No 11.

Function:
The inlet valve controls the flow of air-fuel mixture into the combustion chamber. Proper sealing and timing are essential for maintaining compression, combustion efficiency, and overall power output. A high-quality OE Match valve ensures consistent intake airflow, reliable operation, and long engine life.

Why & When Replacement Matters

Why: Over time, inlet valves experience wear from heat, carbon build up, and mechanical stress, which can lead to reduced compression, power loss, and rough engine operation.
When: During engine rebuilds or cylinder head servicing If there are signs of valve leakage, pitting, or stem wear.  When experiencing loss of power, misfires, or compression imbalance. As preventive maintenance on high-mileage engines or performance builds.

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Related, superseded, cross reference or alternative numbers for comparison.

93010540901

The product you are viewing cross references to these numbers

Engine Cylinder Head Inlet Valve.
The OE Match Engine Cylinder Head Inlet Valve is a high-quality replacement valvetrain component designed to regulate the flow of air and fuel into the engine's combustion chamber. Manufactured to OE specifications for fit, precision and durability, this inlet valve is essential for maintaining efficient engine breathing, combustion performance and overall engine reliability.  

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
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86  

Diagram Ref No 9

Produced from high-strength, heat-resistant materials, the inlet valve is engineered to withstand constant operation and repeated opening and closing cycles. Working alongside the camshaft, valve springs, valve guides and cylinder head assembly, it ensures the precise delivery of the air-fuel mixture required for efficient combustion and optimum engine performance.  

What This Product Does:

• Controls the intake of air and fuel into the combustion chamber.
• Opens and closes in precise timing with engine operation.
• Maintains an effective seal during the compression and combustion cycles.
• Supports efficient airflow and engine breathing.
• Helps maximise engine power and responsiveness.
• Contributes to fuel efficiency and emissions control.
• Forms a critical part of the engine valvetrain system.

Symptoms Of Wear Or Failure:

• Reduced engine power and performance.
• Rough idle or uneven engine operation.
• Engine misfires.Poor throttle response.
• Increased fuel consumption.
• Low compression in the affected cylinder.
• Difficulty starting the engine.
• Ticking or tapping noises from the cylinder head.
• Engine management warning lights or fault codes.
• Failed compression or leak-down test results.

Why Replacement Matters:

• Inlet valves are subjected to continuous operation and must withstand high temperatures, combustion pressures and constant airflow. Over time, valves can become worn, bent, burnt, carbon-contaminated or develop sealing issues that reduce their effectiveness and compromise engine performance.
• A damaged inlet valve can restrict airflow into the combustion chamber, resulting in poor combustion efficiency, reduced power output and increased fuel consumption. If left unresolved, valve-related problems can contribute to compression loss and cause further damage to valve seats, cylinder heads and other internal engine components.
• Replacing a worn or damaged inlet valve restores proper airflow, improves combustion efficiency and helps maintain optimal engine performance. An OE Match replacement provides factory-style fitment, precision manufacturing and long-term durability, ensuring reliable operation and helping protect your Porsche engine from premature wear and costly repairs.

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

92810540902

The product you are viewing cross references to these numbers

Engine cylinder head inlet valve.
Manufactured to OEM specifications, this valve matches the factory dimensions, seat angle, and stem diameter for perfect sealing and valve timing accuracy. Built from high-grade heat-resistant steel, it delivers excellent thermal stability and wear resistance, ideal for the demanding environment of Porsche’s high-revving flat-six engines.

Fits:

Porsche Carrera 3.0ltr - 1976 to 1977 
Porsche 911 SC 3.0ltr - 1978 to 1983 
Porsche 911 3.2 Carrera - 1983 to 1989

Valve head diameter 49,00 mm
Valve stem diameter 9,00 mm
Length 110,10 mm
Valve seat angle 45 °

Diagram Ref No 9.

Function:
The inlet valve controls the flow of air-fuel mixture into the combustion chamber. Proper sealing and timing are essential for maintaining compression, combustion efficiency, and overall power output. A high-quality OE Match valve ensures consistent intake airflow, reliable operation, and long engine life.

Why & When Replacement Matters

Why: Over time, inlet valves experience wear from heat, carbon build up, and mechanical stress, which can lead to reduced compression, power loss, and rough engine operation.
When: During engine rebuilds or cylinder head servicing If there are signs of valve leakage, pitting, or stem wear.  When experiencing loss of power, misfires, or compression imbalance. As preventive maintenance on high-mileage engines or performance builds.

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

93010540901

The product you are viewing cross references to these numbers

Engine Cylinder Head Inlet Valve.
The OE Match Engine Cylinder Head Inlet Valve is a high-quality replacement valvetrain component designed to control the intake of the air-fuel mixture into the engine's combustion chamber. Manufactured to OE specifications for fit, precision and durability, this inlet valve plays a vital role in engine breathing, combustion efficiency and overall performance.  

Fits:

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

Diagram Ref No 9

Constructed from premium-grade materials and precision-engineered to withstand continuous operation, the inlet valve works in conjunction with the camshaft, valve spring, valve guide and cylinder head assembly to ensure accurate timing and efficient airflow. Proper valve operation is essential for maintaining engine power, fuel efficiency and smooth running characteristics.

What This Product Does:

• Controls the flow of air and fuel into the combustion chamber.
• Opens and closes in precise timing with the engine cycle.
• Maintains an effective seal when closed.
• Supports efficient combustion and engine performance.
• Helps maximise engine power output.
• Contributes to fuel efficiency and emissions control.
• Forms an essential part of the engine valvetrain system.

Symptoms Of Wear Or Failure:

• Loss of engine power and acceleration.
• Rough idle or uneven engine running.
• Engine misfires.Reduced fuel efficiency.
• Low compression in the affected cylinder.
• Difficulty starting the engine.
• Hesitation during acceleration.
• Engine management warning lights or fault codes.
• Ticking or tapping noises from the cylinder head.
• Failed compression or leak-down test results.

Why Replacement Matters:

• Inlet valves operate continuously under demanding conditions and are subjected to repeated opening and closing cycles, high temperatures and constant airflow. Over time, valves can become worn, bent, burnt, carbon-contaminated or develop sealing issues that affect engine performance and combustion efficiency.
• A damaged inlet valve can reduce airflow into the combustion chamber, leading to poor combustion, reduced power, increased fuel consumption and compression loss. If left unresolved, valve failure can contribute to further damage within the cylinder head, valve seat and other internal engine components, potentially resulting in costly repairs.
• Replacing a worn or damaged inlet valve restores proper airflow, improves combustion efficiency and helps maintain optimal engine performance. An OE Match replacement provides factory-style fitment, precision manufacturing and long-term durability, ensuring reliable operation and protection for your Porsche engine.

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

91110541120

The product you are viewing cross references to these numbers

Engine cylinder head exhaust valve. Pre varioram engine cars
The OE Match exhaust valve is a precision engine component designed for Porsche 911 (993) Carrera models equipped with early 3.6L engines. It is installed in the cylinder head and forms part of the valve train responsible for controlling the flow of exhaust gases from the combustion chamber to the exhaust system.
Sold individually, 6 required per vehicle

Fits:
Porsche 993 C2 / C4 3.6L 1993 - 1995
 * with Engine codes:  M64.05 / M64.06 / M64.07 / M64.08

Diagram Ref No 10

The OE Match version of part number 99310541901 is designed for pre-Varioram Porsche 993 engines used in early Carrera models. It is engineered with the correct stem diameter, valve head size and material specification to withstand the extreme temperatures and stresses experienced in high-performance air-cooled engines.

The exhaust valve regulates the release of burnt gases from the combustion chamber. When opened at the correct time by the camshaft, it allows exhaust gases to exit the cylinder and enter the exhaust system, preparing the chamber for the next intake cycle.

Maintaining properly functioning valves is essential for efficient combustion, engine power and reliable operation.

Exhaust valves operate under extremely high temperatures and continuous mechanical stress. Over time they may wear, warp or suffer from carbon buildup, which can lead to compression loss, poor engine performance or valve train noise. Replacing worn valves during engine service or rebuild ensures proper combustion sealing and reliable engine operation.

Consider replacing the exhaust valve if you notice:
•  Loss of compression or engine power
•  Excessive valve train noise
•  Burnt or worn valve surfaces
•  During cylinder head rebuild or engine overhaul

Related reference numbers
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99310541901

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Exhaust valve, (Sodium-filled).
This is a sodium-filled exhaust valve designed to Porsche’s original specifications, as used in 964 Carrera (C2 / C4) 3.6L engines (1990–94). The sodium fill helps dissipate heat from the valve head into the valve stem, improving thermal management under exhaust conditions.
Sold each, 6 required per car.

Fits:
Porsche 964 Carrera 2 / Carrera 4  3.6L 1989 - 1994 (M64.01 / M64.02)
Porsche 964 RS Carrera 3.6L 1991 - 1994 (M96.03)

Diagram Ref No 12.

What exhaust valve does:
• Seals the combustion chamber on the exhaust side, opening and closing at the correct times to allow exhaust gases to exit
• The internal sodium enhances heat transfer, reducing valve temperature, helping prevent distortion or burning
•  Works in tandem with valve springs, guides, and seats to maintain consistent cylinder head performance

Over time, exhaust valves undergo extreme heat cycles, which can lead to wear, bending, warping, or pitting on the sealing face.  A faulty or damaged exhaust valve can lead to compression loss, misfires, reduced power, excessive smoking, or engine damage. Replacement improves reliability, restores engine efficiency, and ensures long life under high temperature conditions

•  It fits in the cylinder head’s exhaust valve seat for Porsche 964 the exhaust port side of each combustion chamber
•  The valve stem goes through the valve guide in the head, and the head of the valve seals against the exhaust seat when closed, with its tip actuated by the rocker or cam mechanism.

Related reference numbers
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96410541904

The product you are viewing cross references to these numbers

Engine Cylinder Head Exhaust Valve.
The OE Match Engine Cylinder Head Exhaust Valve is a high-quality replacement valvetrain component designed to control the release of exhaust gases from the combustion chamber. Manufactured to OE specifications for fit, precision and durability, this exhaust valve plays a critical role in maintaining engine efficiency, performance and reliability.  

Fits:

• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 928S 4.7L 1981-83  

Diagram Ref No 10

Constructed from high-temperature resistant materials, the exhaust valve is engineered to withstand the extreme heat, pressure and combustion by-products generated during engine operation. Working in conjunction with the valve seat, valve guide, camshaft and valvetrain assembly, it ensures the timely evacuation of exhaust gases while maintaining proper sealing of the combustion chamber.  

What This Product Does:

• Controls the release of exhaust gases from the combustion chamber.
• Opens and closes in precise timing with the engine cycle.
• Maintains combustion chamber sealing when closed.
• Supports efficient engine breathing and gas flow.
• Helps maintain engine power and performance.
• Contributes to fuel efficiency and emissions control.
• Operates as a critical component of the engine valvetrain system.

Symptoms Of Wear Or Failure:

• Engine misfires.
• Loss of engine power and performance.
• Rough idle or poor engine running.
• Reduced fuel efficiency.
• Low compression in the affected cylinder.
• Excessive exhaust smoke in some cases.
• Ticking or tapping noises from the cylinder head.
• Difficulty starting the engine.
• Engine management warning lights and fault codes.
• Failed compression or leak-down test results.

Why Replacement Matters:

• Exhaust valves operate under some of the harshest conditions within the engine, being continuously exposed to extreme temperatures, combustion pressure and corrosive exhaust gases. Over time, valves can become worn, burnt, warped, cracked or suffer sealing issues that compromise engine performance.
• A damaged exhaust valve can lead to compression loss, incomplete combustion and reduced engine efficiency. If left unresolved, valve failure can cause further damage to valve seats, pistons, cylinder heads and other internal engine components, resulting in costly repairs.
• Replacing a worn or damaged exhaust valve restores proper combustion chamber sealing, improves engine efficiency and helps maintain optimal engine performance. An OE Match replacement provides factory-style fitment, precision manufacturing and high-temperature durability, ensuring reliable operation and long-term protection for your Porsche engine.

Related reference numbers
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92810541004

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Engine cylinder head exhaust valve. Diameter - 41.5mm
Sold each.

High-quality replacement valve designed for classic Porsche 911 engines produced between 1978 and 1989. 

Fits:

Porsche Carrera 3.0ltr - 1976 to 1977 
Porsche 911 SC 3.0ltr - 1978 to 1983 
Porsche 911 3.2 Carrera 1984 to 1989 

Diagram Ref No 10.

The exhaust valve is located in the cylinder head as part of the engine’s valve train. With every combustion cycle, it opens to release exhaust gases and closes again to preserve compression. Built to endure extreme heat, pressure, and constant motion, it plays a vital role in maintaining engine performance, efficiency, and emissions control.  

Over time, exhaust valves can wear or deform due to heat, carbon deposits, or mechanical stress. When they no longer seal properly, exhaust pressure can leak past the valve seat, reducing compression, power, and efficiency. In severe cases, a failing exhaust valve can lead to misfires, rough running, or damage to the cylinder head.

You should consider replacing the exhaust valve if any of the following occur:
•  Loss of engine power, especially at higher RPMs
•  Rough idle or misfires
•  Exhaust smoke or unusual noise from the cylinder head
•  Compression test reveals a weak cylinder
•  When rebuilding or overhauling the engine or cylinder head
•  After excessive heat exposure or in engines with high mileage

Replacing the valve ensures precise fit, proper sealing, and long-term durability — critical for restoring engine performance and preventing further damage.

Related reference numbers
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93010541951

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Clutch Cable Clevis Pin.
The OE Match Clutch Cable Clevis Pin is a high-quality replacement fastening component designed to connect the clutch cable to the clutch pedal or operating linkage assembly. Manufactured to OE specifications for fit, strength and durability, this precision-engineered pin plays a critical role in transmitting clutch pedal movement to the clutch operating mechanism.  

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 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 914 (1970-1976)  

Diagram Ref No 26

Constructed from durable, wear-resistant materials, the clevis pin is designed to withstand repeated movement, load cycles and vibration associated with normal clutch operation. Despite its small size, it is an essential component for maintaining smooth clutch engagement, reliable pedal feel and consistent transmission performance.  

What This Product Does:

• Connects the clutch cable to the clutch pedal or linkage assembly.
• Transfers clutch pedal movement to the clutch operating mechanism.
• Maintains correct clutch cable alignment.
• Allows smooth pivoting movement within the linkage system.
• Supports consistent clutch engagement and disengagement.
• Helps maintain accurate clutch pedal operation.
• Contributes to reliable clutch system performance.

Symptoms Of Wear Or Failure:

• Excessive play in the clutch pedal.
• Loose or inconsistent clutch pedal feel.
• Difficulty engaging or disengaging the clutch.
• Increased free play within the clutch linkage.
• Rattling noises from the pedal assembly area.
• Uneven clutch operation.
• Visible wear, corrosion or deformation of the pin.
• Clutch cable disconnection in severe cases.
• Reduced clutch control and gear selection difficulties.

Why Replacement Matters:

• The clutch cable clevis pin is subjected to constant movement and load every time the clutch pedal is operated. Over time, wear can develop on the pin surface, causing increased play within the linkage system. Corrosion, fatigue or physical damage can further compromise its performance and reliability.
• A worn or damaged clevis pin can lead to imprecise clutch operation, excessive pedal movement and increased wear on surrounding linkage components. In severe cases, pin failure can result in loss of clutch control, making gear changes difficult or impossible and potentially leaving the vehicle inoperable.
• Replacing a worn clutch cable clevis pin restores proper linkage function, improves clutch pedal feel and helps ensure reliable clutch operation. An OE Match replacement provides factory-style fitment, dependable durability and long service life, helping maintain the performance and reliability expected from your Porsche.

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99916600102

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Flywheel Bolt Fitment: Porsche 986 Boxster (1997–2004), 987 Boxster (2005–2008), 987C Cayman (2006–2008), 996 (1999–2005), 997 (2005–2008) – Manual Transmission Only. Dimensions: M10 x 1.0 x 50mm Price is each
The flywheel bolt Ref No. 999.073.092.02 is a critical component in securing the flywheel to the crankshaft, ensuring proper engine operation. These bolts are designed to withstand the high torque and stress generated during engine performance. Over time, they can experience fatigue, leading to potential issues if not replaced when necessary.

Fits:
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 996 C2, C4, C4S 1989-05
Porsche 997 C2, C4
Porsche 997.2 Manual gearbox only

This product supersedes Porsche's old part numbers:
- 99907309209
- 99907309201

Diagram ref no 18.

The Flywheel Bolt for Porsche 986, 987, 987C, 996, and 997 (part number 99907309202) by OE Match is a high-quality, precision-engineered component designed to provide a secure and reliable connection between the flywheel and engine. Manufactured from premium-grade steel, this bolt offers exceptional strength, durability, and corrosion resistance, all while meeting the OEM standards for Porsche performance. Specifically crafted for a perfect fit, it ensures easy installation and optimal engine operation, preventing unwanted vibrations and damage. Ideal for replacing worn or damaged flywheel bolts during routine maintenance or engine rebuilds, this part is a must-have for both DIY mechanics and professional garages. Trusted by Porsche owners for its long-lasting durability, the OE Match flywheel bolt reduces the need for frequent replacements, ensuring reliable performance for years to come. Order now to enhance your Porsche’s engine reliability with OE Match quality.

Related reference numbers
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99907309202

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Flywheel Bolt, 10 X 62 mm.
The OE Match Flywheel Bolt, 10 x 62 mm is a high-strength replacement fastening component designed to securely attach the flywheel to the engine crankshaft. Manufactured to OE specifications for dimensional accuracy, strength and durability, this bolt is engineered to withstand the extreme rotational forces, torque loads and thermal stresses generated within the drivetrain.  

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• 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) 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
• Porsche 996 TURBO 2000-05
• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>
• Porsche 996 GT3 RS 2003-04
• Porsche 997 MK1 GT3 / GT3 RS 2007-09
• Porsche 968 3.0L 1992-94
• Porsche 968 Sport 3.0L 1994-95
• Porsche 968 CS 3.0L 1993-95
• Porsche 968 Turbo S 3.0L 1993-94  

Diagram Ref No 28

Produced from premium-grade materials and manufactured to precise tolerances, the flywheel bolt provides the critical clamping force required to maintain the secure connection between the crankshaft and flywheel assembly. Correct installation and torque specification are essential for reliable engine operation, clutch performance and drivetrain safety.  

What This Product Does:

• Secures the flywheel to the engine crankshaft.
• Maintains critical clamping force within the drivetrain assembly.
• Ensures correct flywheel alignment and positioning.
• Withstands high torque loads and rotational forces.
• Supports smooth power transfer from the engine to the transmission.
• Helps maintain clutch and drivetrain reliability.
• Contributes to safe and dependable vehicle operation.

Symptoms Of Wear Or Failure:

• Drivetrain vibration during operation.
• Unusual noises from the flywheel or bellhousing area.
• Flywheel movement or instability.
• Clutch engagement irregularities.
• Difficulty maintaining correct torque specification.
• Visible thread damage, corrosion or bolt stretching.
• Premature wear of clutch and flywheel components.
• Engine-to-transmission alignment issues.
• Potential catastrophic drivetrain failure in severe cases.

Why Replacement Matters:

• Flywheel bolts are subjected to extreme mechanical loads, vibration, rotational stress and thermal cycling throughout their service life. Many flywheel bolts are designed as single-use or torque-to-yield fasteners, meaning they can stretch during installation and should be replaced whenever the flywheel is removed.
• Reusing worn or stretched flywheel bolts can compromise clamping force, increasing the risk of flywheel loosening, vibration and damage to critical drivetrain components. In severe cases, bolt failure can result in significant engine and transmission damage, leading to costly repairs.
• Replacing flywheel bolts during clutch, flywheel or engine service ensures the assembly remains securely fastened and operates as intended. An OE Match replacement provides factory-style fitment, precise manufacturing and dependable strength, helping maintain drivetrain integrity, smooth operation and long-term reliability for your Porsche.

Related reference numbers
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99911901701

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Single Mass Flywheel Bolt - M10x1.25x24
OE Match flywheel retaining bolt used to secure a single-mass flywheel to the crankshaft. With an M10×1.25 thread and 24mm length, it’s engineered to deliver the correct clamp force to keep the flywheel securely mounted under extreme torsional loads, rapid RPM changes, and repeated heat cycles.
Sold each, 9 required per vehicle.

Fits:
Porsche 928 1978 - 1995
Porsche 964 Carrera RS 1991 - 1994
Porsche 993 Carrera RS Clubsport 1995 - 1996
Porsche 996 GT3 1999 - 2001 - With PR 002 / 003*
Porsche 996 GT3 RS 2003 - 2005
Porsche 997 GT3 RS 2007 - 2011
Porsche 997-2 GT2 RS 2010

Diagram ref no 4

Correct flywheel bolts are critical because they maintain the integrity of the crank-to-flywheel joint - supporting smooth power transfer, stable clutch operation, and long-term reliability. This OE Match version is designed for direct replacement during clutch/flywheel service and engine rebuild work.

Function: These bolts thread into the crankshaft flange and clamp the flywheel in place, ensuring accurate alignment and a secure interface between engine and clutch assembly. Proper bolt specification supports consistent torque retention and helps protect the flywheel, crank flange, and clutch components from vibration-related wear.

Flywheel bolts operate under high stress and can fatigue, stretch, or lose torque retention after removal and re-torque cycles. Replacing them with correct OE Match bolts helps ensure proper clamp load, reduces the risk of loosening, and protects expensive components from damage caused by flywheel movement.

When to replace:
•  During clutch replacement or flywheel removal
•  During engine rebuilds or rear main seal work requiring flywheel removal
•  If bolts show thread damage, corrosion, or signs of stretching
•  When service procedure specifies new bolts on reassembly
•  Any time correct torque cannot be reliably achieved

Related reference numbers
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92810215102

The product you are viewing cross references to these numbers

Flywheel socket head bolt. 
Built to factory spec for 911, 924S, 944, 964, and 968. It used for secure clamping of the flywheel to the crankshaft, maintaining precise alignment and long-term reliability.
Sold each, 9 required per vehicle.

Fits:
Porsche 911 1978-89
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 964 1989-94 (not RS)
Porsche 968 1992-95

Diagram ref no 6.

Provides the critical clamping force between crankshaft flange and flywheel. Correct bolt stretch and friction are essential to prevent loosening, fretting, or flywheel run-out that can cause vibration, starter engagement issues, or clutch damage.

Over time, flywheel bolts can stretch, corrode, or lose their clamping strength due to repeated torque cycles and heat exposure. A weakened or reused bolt may fail to maintain the necessary preload, risking vibration, misalignment, or flywheel damage.

Replace the flywheel bolts when:
• Performing a clutch or flywheel replacement (most Porsche bolts are single-use torque-to-yield).
• Bolts show signs of corrosion, thread damage, or head wear.
• The factory service procedure specifies new bolts for reassembly.

Installing a new bolt set ensures secure fastening, correct torque tension, and long-term drivetrain reliability.

Related reference numbers
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93010220601

The product you are viewing cross references to these numbers

Clutch Bolt, M8 x 50.
The clutch bolt provides the clamping force that holds the clutch assembly together. By fastening the pressure plate to the flywheel at precise torque settings, it enables reliable torque transfer between the engine and transmission. Proper fasteners are essential for consistent clutch engagement, smooth shifting, and long-term drivetrain durability.
Need 9 per car. Price is for each.

Fits:
Porsche 944 1982 - 1991
Porsche 924 Turbo 1976 - 1985
Porsche 924S 1986 - 1988

Length 50mm
Outer Thread 8mm
Thread Size 1.25

Diagram ref no 5.

Installed through the clutch pressure plate into the flywheel, this bolt spreads load evenly and resists loosening under vibration and torque. Its material and geometry are matched to the factory specification so that it maintains clamping force throughout heat cycles and driving loads, helping prevent premature wear and ensuring stable clutch diaphragm performance.

Clutch bolts are subject to high clamping forces, heat cycles, and torque loads. Over time, original hardware can stretch, corrode, or fatigue, all of which can lead to compromised load retention. Reusing old or damaged fasteners increases the risk of clutch slip, uneven pressure plate contact, or flange failure. Installing fresh bolts helps restore correct clamping integrity and reduces the risk of future clutch-related issues.

When to replace:
•  During clutch replacement or overhaul
•  If original bolts show corrosion, stripping, or rounding
•  After removal during transmission service
•  Preventive maintenance in performance or high-mileage vehicles

Related reference numbers
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90006736201

The product you are viewing cross references to these numbers

Flywheel to Clutch Pressure Plate Bolt – Porsche 996 / 986 / 987 / 997 (Part No. 900.067.131.03) This bolt is a critical component in the clutch assembly of various Porsche models, ensuring the secure attachment of the clutch pressure plate to the flywheel.
Sold each. 6 pcs required per car

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
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
Porsche Cayman 2.7L 987C 2006-08
Porsche Cayman S 3.4L 987C 2005-08

Diagram ref no 4.

Why you should replace these bolts 
Over time, the flywheel to clutch pressure plate bolts can experience wear and fatigue due to the high torque and heat cycles in the clutch system. Replacing these bolts during clutch or flywheel service is essential to:

• Ensure Secure Clutch Assembly: Prevent potential disengagement or slipping of the clutch pressure plate.
• Maintain Clutch Performance: Avoid uneven pressure distribution that can lead to premature clutch wear.

Common Issues

• Bolt Stretching: Repeated heating and cooling cycles can cause the bolts to stretch, compromising their clamping force.
• Corrosion: Exposure to moisture and road salts can lead to rust, weakening the bolts.
• Thread Wear: Frequent removal and installation can wear the threads, leading to improper torque application.
• Prevent Damage: Reduce the risk of damage to the flywheel or pressure plate caused by loose or worn bolts.

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

90006713103

The product you are viewing cross references to these numbers

Clutch Bolt.
The OE Match Clutch Bolt is a high-quality replacement fastening component designed to securely mount clutch assembly components to the flywheel or associated drivetrain assemblies. Manufactured to OE specifications for strength, dimensional accuracy and durability, this bolt plays a critical role in maintaining the integrity and safety of the clutch system. 
Sold Each.
x9 Required Per Car. 

Fits:

• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• 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) 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
• Porsche 996 TURBO 2000-05
• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>
• Porsche 996 GT3 RS 2003-04
• Porsche 997 MK1 GT3 / GT3 RS 2007-09
• Porsche 968 3.0L 1992-94
• Porsche 968 Sport 3.0L 1994-95
• Porsche 968 CS 3.0L 1993-95
• Porsche 968 Turbo S 3.0L 1993-94  

Diagram Ref No 3

Engineered from high-grade materials and designed to withstand the extreme loads, vibration and temperature variations generated within the drivetrain, the clutch bolt provides the clamping force required to keep clutch components securely fixed during operation. Accurate fitment and correct torque are essential for reliable clutch performance and long-term drivetrain durability.  

What This Product Does:

• Secures clutch assembly components to the flywheel or mounting surface.
• Maintains critical clamping force within the clutch system.
• Helps ensure correct alignment of clutch components.
• Withstands high rotational forces and drivetrain loads.
• Supports safe and reliable clutch operation.
• Prevents unwanted movement of clutch components.
• Contributes to overall drivetrain reliability and performance.

Symptoms Of Wear Or Failure:

• Loose clutch assembly components.
• Vibration from the clutch or drivetrain.
• Unusual noises from the bellhousing area.
• Clutch engagement irregularities.
• Visible corrosion, thread damage or bolt stretching.
• Difficulty maintaining correct torque specification.
• Premature wear of clutch or flywheel components.
• Clutch assembly movement under load.
• Potential drivetrain damage in severe cases.

Why Replacement Matters:

• Clutch bolts are subjected to extreme mechanical loads, rotational forces, heat cycles and vibration throughout their service life. Many clutch bolts are torque-to-yield fasteners and are designed for single-use applications. Reusing worn or stretched bolts can compromise clamping force and increase the risk of component loosening.
• A failed or improperly secured clutch bolt can lead to clutch misalignment, vibration, drivetrain damage and, in severe cases, catastrophic clutch assembly failure. During clutch replacement or transmission service, installing new clutch bolts is essential to ensure the correct clamping force and long-term reliability of the assembly.
• Replacing clutch bolts with OE Match components restores factory-specified fastening performance, maintains clutch system integrity and helps protect surrounding drivetrain components. OE Match replacement bolts provide factory-style fitment, precise manufacturing and dependable strength, ensuring reliable operation and long-term durability for your Porsche.

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

99951001501

The product you are viewing cross references to these numbers