Porsche > 997 (911) MK2 2009-2012 > 997 MKII Carrera C4 3.6L 2009-12 > Gearbox / Transmission >

Flywheel / Torque

5 5 5 5 5

Flywheel Bolts SET OF 8. Porsche 986 / 987 / 987C / 996 / 997 - 99907309202

99907309202/1KIT

Product Information

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 SET OF 8 BOLTS
The Porsche flywheel bolt 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
Related, superseded, cross reference or alternative numbers for comparison.

99907309202

99907309209

99907309201

99907309202

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3 3 3

Dual mass flywheel. Porsche 997.2 Carrera Manual Gearbox

9G111401201/1

Product Information

Dual mass flywheel.

luk

Fits:
Porsche 997.2 3.6L-3.8L 2009-12 6-speed Manual transmission

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Related, superseded, cross reference or alternative numbers for comparison.

9G111401201

9G111401201

415057210

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3 3 3

Flywheel Bolt. Porsche 986 / 987 / 987C / 996 / 997 - 99907309202

99907309202

Product Information

Flywheel Bolt. Price is for each.

porsche

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

Click on 'Zoom in' to see the diagram.
Diagram ref no 18.

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Related, superseded, cross reference or alternative numbers for comparison.

99907309202

99907309209

99907309201

99907309202

The product you are viewing cross references to these numbers

4 4 4 4

Flywheel Bolt. Porsche 986 / 987 / 987C / 996 / 997 - 99907309202

99907309202/1

Product Information

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.

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Related, superseded, cross reference or alternative numbers for comparison.

99907309202

99907309209

99907309201

99907309202

The product you are viewing cross references to these numbers

3 3 3

Lightweight steel flywheel. Porsche 991 & 997.2 DFI

106425-12-PKG

Product Information

Lightweight Steel Flywheel and Clutch Kit.
Includes Sachs Performance clutch kit

aasco

Fits:
Porsche 997.2 & 991 997.2 2009-16 3.6L/3.8L
Steel DFI

Features:
• Light-weight for improved performance and drastically reduced M.O.I.
• Replaceable heat shield (friction surface), no need to surface flywheel
• OEM clutches bolt on for easy installation
• High tolerance manufacturing to insure a perfect hassle free installation
• Designed for normal street use for every day performance enthusiasts
• Stepped dowel pins so they are held captive by the clutch cover
• Racing parts available for the professional
• Highest quality materials like 6061-T6 aluminum for the flywheel, treated steel for the heat shield and OEM quality starter ring gears
• CAD designed/ CNC machined in house for the ultimate in quality control
• One year limited warranty on production components

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

106425-12-PKG

106425-12-PKG

106425-12

9G111402001

9G111691300

9G111691304

99711608002

The product you are viewing cross references to these numbers

3 3 3

Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1

0PB105249

Product Information

Rear main seal (crankshaft oil seal) - 85 x 105 x 11.

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>>
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>>
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>>
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>>

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>>

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5.

Related reference numbers
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0PB105249

99911347640

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3 3 3

Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1

0PB105249/1

Product Information

99911347640

99911349040

99911349041

94810121202

99710121200

99710121201

0PB105249

The product you are viewing cross references to these numbers

3 3 3

Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1

0PB105249/4

Product Information

99911347640

99911349040

99911349041

94810121202

99710121200

99710121201

0PB105249

The product you are viewing cross references to these numbers

3 3 3

Uprated clutch and lightened flywheel kit. Porsche 997.2

9M997.2LWF

Product Information

Uprated clutch and lightened flywheel kit.

Fits:
Porsche 997.2 Carrera 2 / Carrera 4 - 2009 to 2012
Porsche 997.2 Carrera 2S / Carrera 4S - 2009 to 2012

9m Lightweight Flywheel

CNC machined high carbon forged billet steel material
45% weight reduction
Direct replacement
Quicker acceleration
Reduced rotating mass and less engine inertia
Better throttle response
OEM clutch compatible
More power to the wheels

9m 997.2 Upgraded clutch kit

Higher thermal capacity compared to OEM friction material
Higher transmittable torque compared to OEM
Performance pressure plate giving higher transmittable torque and higher clamp load
Capable of over 550Nm torque
Sprung uprated organic center plate with OEM pedal feel
Ideal upgrade for typically fast road/track day cars and everyday use

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

9M997.2LWF

9G111691300

9G111401201

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DISPLAYING 1 to 9 (of 9 products)

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About Flywheel / Torque

Porsche Flywheels & Torque Converters | Smooth Power Transfer & Engine Balance

Flywheels and torque converters are vital components in your Porsche’s drivetrain, ensuring smooth power transfer from the engine to the transmission. The flywheel provides rotational balance and stores kinetic energy for manual gear changes, while the torque converter in automatic models performs a similar role — transferring engine torque hydraulically for seamless acceleration.

At Design911, we supply precision-engineered flywheels and torque converters designed to meet or exceed original performance specifications. Each component is manufactured from high-grade materials, ensuring strength, balance, and reliability under all driving conditions. Whether you’re restoring a classic 911 or maintaining a modern PDK-equipped Porsche, our range provides the quality and performance your drivetrain demands.

What Do Flywheels & Torque Converters Do?

Both components play critical roles in the performance and drivability of your Porsche, acting as torque-transfer systems between the engine and gearbox.

Flywheels (Manual Transmissions):
Store rotational energy to maintain engine smoothness. Provide a friction surface for clutch engagement. Aid in gear transitions by balancing engine speed and torque.

Torque Converters (Automatic Transmissions):
Transfer torque through fluid dynamics between engine and gearbox. Enable smooth gear shifting without clutch operation. Multiply torque for efficient acceleration and smoother driving.

Together, they ensure seamless operation, smooth starts, and optimal power delivery from engine to transmission.

Why Do Flywheels & Torque Converters Fail or Wear Out?

Over time, both flywheels and torque converters experience wear due to high rotational forces, friction, and heat cycles.

Common Causes of Failure Include:

Heat damage or warping from clutch slippage (flywheels).
Cracked or worn ring gear teeth affecting starter engagement.
Fluid contamination or internal seal leaks (torque converters).
Bearing wear leading to vibration or imbalance.
Excessive torque or misalignment from modified engines.

Symptoms of failure may include clutch chatter, transmission shudder, vibration during acceleration, or slipping during gear changes. Ignoring these signs can lead to further drivetrain damage.

Why Replace your Flywheel or Torque Converter?

Replacing worn flywheels or torque converters restores smooth torque delivery, reduces vibration, and ensures reliable clutch or transmission performance. Upgraded lightweight flywheels improve throttle response, while performance torque converters enhance acceleration and drivability.

Key Benefits:

Restores smooth engine-to-transmission power delivery.
Eliminates vibration, slippage, and engagement issues.
Improves clutch or automatic transmission performance.
Balances rotational mass for smoother idling and shifting.
Available in lightweight or performance designs for tuned Porsches.
Ideal for clutch replacement, transmission rebuilds, or performance upgrades.

It’s strongly recommended to replace the flywheel or torque converter during any major clutch or gearbox service for long-term reliability and balanced performance.

Highlights

Premium Porsche flywheels and torque converters.
Precision-balanced for smooth, vibration-free operation.
Manufactured from high-strength, heat-treated materials.
Available for manual, automatic, and PDK Porsche models.
Enhances drivability, acceleration, and transmission longevity.
Essential for gearbox rebuilds, clutch services, and performance tuning.

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Flywheel / Torque

Flywheel / Torque