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Flywheel / Torque
This original Porsche flywheel is designed for manual transmission GT3 applications, helping provide smooth clutch engagement, reduced drivetrain vibration and correct factory performance.
Fits:
For 6-speed manual gearbox for rear-wheel drive
Porsche 992.1 GT3 2021 - 2025 * not for S/T design
Porsche 992.2 GT3 4.0L 2025>>
Diagram ref no 14
The Genuine Porsche 9P1105262F dual-mass flywheel is an OE manual transmission flywheel for selected Porsche 992 GT3 models with 6-speed manual gearbox and rear-wheel drive. It helps smooth torque delivery, reduce drivetrain vibration and support correct clutch operation. Ideal for clutch replacement, gearbox service or drivetrain repair using Genuine Porsche parts.
What This Part Does / Functions:
• Connects the engine crankshaft to the clutch and gearbox assembly
• Helps smooth engine torque pulses before they reach the transmission
• Reduces drivetrain vibration, noise and harshness
• Supports smooth clutch engagement and take-up
• Helps protect gearbox and driveline components from shock load
• Works with the manual clutch system to transfer engine power
• Replaces a worn, noisy, heat-damaged or failed original flywheel
Why Replace This Part?
A dual-mass flywheel is a wear-sensitive drivetrain component. It is exposed to clutch heat, high engine speed, torque load, vibration and repeated clutch engagement. Over time, the internal damping mechanism can wear, the friction surface can become heat damaged, or the flywheel can develop excessive rotational play.
A worn flywheel may cause vibration, clutch judder, rattling, poor clutch engagement or drivetrain harshness. Replacing it with a Genuine Porsche dual-mass flywheel helps restore smooth clutch operation and factory Porsche drivability.
Common Symptoms of a Worn Dual-Mass Flywheel
• Clutch judder during take-up
• Rattling noise from the bellhousing area
• Vibration at idle or when pulling away
• Harsh or uneven clutch engagement
• Excessive rotational play in the flywheel
• Gearbox vibration or driveline shudder
• Heat spots, scoring or cracking on the friction surface
• Noise when switching the engine off
• Wear found during clutch replacement.
When to Replace This Part
• During clutch replacement if the flywheel shows wear
• If the flywheel has excessive rotational or axial play
• If the friction surface is heat damaged, cracked or scored
• If clutch judder or drivetrain vibration is traced to the flywheel
• If the flywheel is noisy or the internal damping mechanism has failed
• During gearbox removal where flywheel condition is poor
• When replacing a failed clutch assembly
Where It Fits on the Car
This flywheel fits between the engine crankshaft and the manual clutch / gearbox assembly. It forms part of the drivetrain connection between the 4.0L engine and the 6-speed manual gearbox.
Correct installation requires the correct clutch components, correct fasteners, Porsche workshop torque settings and proper inspection of the clutch release system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9P1105262F
The product you are viewing cross references to these numbers
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche 992.2 GT3 2025>>
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12 Month Warranty
Worldwide Delivery
High-quality LuK dual-mass flywheel for Porsche 911 Type 992 GT3 models equipped with the 6-speed manual transmission.
Fits:
For 6-speed manual gearbox for rear-wheel drive
Porsche 992.1 GT3 2021 - 2025 * not for S/T design
Porsche 992.2 GT3 4.0L 2025>>
Diagram ref no 14
The LuK 415117210 is a premium stock-replacement flywheel corresponding to Porsche OE reference 9P1105262F and is designed specifically for manual-transmission applications.
The dual-mass flywheel forms an important connection between the high-revving 4.0-litre flat-six engine and the manual gearbox. Its internal damping system helps isolate torsional vibration generated by the engine before it reaches the clutch and transmission, providing smoother torque transfer while reducing unwanted gearbox vibration, resonance and drivetrain noise.
This is particularly important on the Porsche 911 GT3, where the drivetrain must combine precise, direct response with the refinement necessary for both high-performance road driving and track use.
What Does a Dual-Mass Flywheel Do?
A dual-mass flywheel consists of two primary rotating masses linked through an internal spring and damping system.
The first mass is connected to the engine crankshaft, while the second connects to the clutch and transmission.
Rather than allowing combustion pulses and rotational vibration to pass directly into the gearbox, the internal damping mechanism absorbs and controls a significant proportion of this movement.
Benefits include:
• Reduced drivetrain vibration
• Reduced gearbox rattle
• Smoother torque delivery
• More refined clutch operation
• Reduced transmission resonance
• Improved drivability at lower engine speeds
For a high-revving performance engine such as the Porsche GT3's naturally aspirated flat-six, maintaining the correct flywheel specification is particularly important.
A dual-mass flywheel contains internal springs, bearings and damping components that can gradually wear through use.
Possible symptoms of a worn or damaged flywheel can include:
• Rattling from the bellhousing area
• Excessive vibration at idle Judder during clutch engagement
• Clunking when starting or stopping the engine
• Increased transmission noise
• Vibration under acceleration
• Excessive rotational free play
• Irregular clutch engagement
• Knocking when changing load.
A worn flywheel can also affect the service life and operation of the clutch
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9P1105262F
The product you are viewing cross references to these numbers
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche 992.2 GT3 2025>>
Shop Securely
12 Month Warranty
Worldwide Delivery
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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