Luk DMF135 Clutch Flywheel

LuK DMF135 Dual Mass Flywheel

The LuK DMF135 is a dual mass flywheel engineered for the 2009-2012 Porsche 911. Built to match the application-specific tuning of the original LuK design, it helps maintain driveline smoothness and protects related components from the added stress that can come with a solid flywheel conversion.

With a 23.7 in. flywheel diameter, 17.8 in. inner diameter, a -0.366 in. cup depth/step height, and 135 teeth, this clutch flywheel is specified for precise OE-style fitment. The LuK DMF135 is a direct-fit solution for Porsche 911 flywheel replacement needs where factory-style balance and damping are important.

Key Features

• Dual mass flywheel design for smoother torque transfer
• Flywheel diameter: 23.7 in. / 9.331 in.
• Flywheel inner diameter: 17.8 in. / 7.008 in.
• Flywheel cup depth/step height: -0.366 in. / -9.3 mm
• 135-tooth ring gear specification
• OE-style application tuning for Porsche 911 drivetrains
• Part number: DMF135

Detailed Description

LuK designs dual mass flywheels to reduce drivetrain shock and help preserve the balance of the engine and transmission system. For the Porsche 911, the DMF135 is matched to the vehicle’s original requirements rather than a universal solid-flywheel setup. That matters because incorrect flywheel damping can increase wear on engine mounts, place extra load on the gearbox, and contribute to crankshaft damage over time. This part cross-references NDMF135 for the same application.

Use DMF135 when servicing a Porsche 911 clutch system and you need a flywheel built around the correct diameter, tooth count, and step height. The LuK DMF135 is a focused replacement for 2009-2012 Porsche 911 flywheel service, and it is also a strong search match for drivers looking for a Porsche 911 dual mass flywheel replacement or OE-style clutch flywheel by part number DMF135.

Common Problems This Part Can Address

• Excessive drivetrain vibration during acceleration or shifting
• Harsh clutch engagement caused by worn flywheel damping
• Noise and stress transferred into the gearbox
• Premature wear on engine mounts from driveline shock
• Flywheel-related crankshaft stress from improper replacement parts

Installation Notes

Confirm the flywheel diameter, inner diameter, tooth count, and step height before installation. This part is listed for 2009-2012 Porsche 911 applications, so verify the vehicle year and drivetrain configuration against the original component before assembly. Inspect the clutch system, release components, and mating surfaces during service to help ensure proper operation after replacement.

Quality Assurance

LuK supplies OE-level drivetrain components and the DMF135 follows the brand’s application-specific approach to dual mass flywheel design. The part is engineered to support factory-style driveline control in Porsche 911 applications and is identified by part number DMF135.