Flywheel / Torque

Dual-mass flywheel. 

Fits:
Cars with PDK transmission (dual clutch) (PR:250)
Porsche 911 (991) 4.0 GT3 RS / R (368kw) 04/2015 - 12/2020
Porsche 911 (991) 4.0 GT3 (368kw) 05/2017 - 12/2020
Porsche 911 (991) 4.0 GT3 RS (383kw) 05/2018 - 12/2020
Porsche 911 (992) GT3 (375kw)  05/2021 - 05/2024
Porsche 911 (992) GT3 RS (386kw) 09/2022 - 05/2024

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9P1105264C

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Dual-mass flywheel. 

Fits:
Cars with PDK transmission (dual clutch) (PR:250)
Porsche 911 (991) 4.0 GT3 RS / R (368kw) 04/2015 - 12/2020
Porsche 911 (991) 4.0 GT3 (368kw) 05/2017 - 12/2020
Porsche 911 (991) 4.0 GT3 RS (383kw) 05/2018 - 12/2020
Porsche 911 (992) GT3 (375kw)  05/2021 - 05/2024
Porsche 911 (992) GT3 RS (386kw) 09/2022 - 05/2024

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9P1105264C

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Dual-mass Flywheel
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.

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9P1105262F

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Dual-mass Flywheel
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.



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9P1105262F

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Ninemeister 9m Single Mass Lightweight Flywheel 

Transform the response of your Porsche GT3 drivetrain with the Ninemeister 9m Single Mass Lightweight Flywheel, developed for Porsche 991 and 992 GT3 and GT3 RS models equipped with PDK transmission.

Fits:

• Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
• Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
• Porsche 992.1 GT3 4.0L 2021-24
• Porsche 992.1 GT3 RS 4.0L 2022-24

CNC machined from high-carbon forged billet steel, the 9m flywheel provides an impressive 45% weight reduction compared with the original component. By substantially reducing rotating mass and engine inertia, the engine can change speed more freely, producing sharper throttle response and quicker acceleration.

Designed as a direct replacement, this is a highly effective performance upgrade for GT3 and GT3 RS owners looking for a more immediate and responsive drivetrain without fundamentally changing the engine itself.

What Does a Flywheel Do?

The flywheel is connected to the engine crankshaft and forms an important link between the engine and transmission. Its rotating mass helps manage the transfer of engine torque while maintaining momentum as engine speed changes.

A conventional heavier flywheel stores more rotational energy, which can help smooth drivetrain operation. However, the engine must also accelerate and decelerate this additional mass every time the RPM changes.

Reducing flywheel weight means the engine has less rotating mass to accelerate, allowing it to respond more quickly to throttle inputs.

Why Upgrade to a Lightweight Single Mass Flywheel?

The key advantage of the Ninemeister 9m flywheel is its 45% reduction in weight.

Reducing rotating mass has a particularly noticeable effect because the flywheel is continuously accelerated and decelerated with the engine. With less inertia to overcome, the engine can gain and lose RPM more rapidly.

The result is a drivetrain that feels more immediate and responsive, particularly during rapid acceleration and performance driving.

Benefits include:

• 45% weight reduction
• Reduced rotating mass
• Lower engine inertia
• Quicker engine response
• Improved throttle response
• Faster acceleration
• More immediate engine character
• Reduced drivetrain power losses
• More engine power available at the wheels

The upgrade does not create additional engine horsepower in the same way as an engine modification. Instead, reducing the energy required to accelerate the flywheel can reduce rotational losses during acceleration, allowing more of the engine's available performance to reach the wheels.

CNC Machined Forged Billet Steel Construction

The Ninemeister 9m flywheel is CNC machined from high-carbon forged billet steel, combining reduced weight with the strength required for a high-performance drivetrain application.

Precision CNC machining ensures accurate dimensions and consistent manufacture, while the forged steel construction makes this flywheel particularly well suited to the high engine speeds and performance demands associated with Porsche GT3 and GT3 RS models.

Porsche 991 / 992 GT3 & GT3 RS Lightweight Flywheel Upgrades

Lightweight drivetrain components are an effective way of improving engine response without relying solely on increasing engine output. On high-revving Porsche GT models, reducing rotating mass allows the engine to react more quickly to changes in throttle position.

A lightweight flywheel is therefore particularly suited to Porsche 991 GT3, 991 GT3 RS, 992 GT3 and 992 GT3 RS models used for enthusiastic road driving, track days and other performance-focused applications.

Unlike modifications designed purely to increase peak horsepower, reducing flywheel mass changes how quickly the engine can respond. This can make the drivetrain feel more eager and immediate, complementing the naturally responsive character of Porsche's GT3 engine.

Why Choose the Ninemeister 9m Lightweight Flywheel?

Ninemeister's 9m lightweight flywheel combines a substantial 45% reduction in weight with CNC-machined high-carbon forged billet steel construction.

For GT3 and GT3 RS owners seeking sharper throttle response, reduced inertia and quicker acceleration, it provides a direct-replacement solution designed to improve drivetrain responsiveness while retaining a high-strength steel flywheel construction.

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9M9P1105264

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