Luk DMF115 Clutch Flywheel

OE-Style Dual Mass Flywheel for Porsche 911

The LuK DMF115 is a dual mass flywheel built for 2005-2008 Porsche 911 applications. It is engineered to match the drivetrain’s torsional damping needs and to support smoother clutch engagement than a solid flywheel setup.

For Porsche 911 owners searching for a direct-fit clutch flywheel replacement, the DMF115 provides the OE-style dimensions and tooth count needed for proper transmission operation.

Key Features

• Dual mass flywheel design for drivetrain vibration control
• Flywheel diameter: 24.4 in. / 9.606 in.
• Flywheel inner diameter: 14.75 in. / 5.807 in.
• Flywheel cup depth/step height: -0.366 in. / -9.3 mm
• 135-tooth ring gear for starter engagement
• Direct application for 2005-2008 Porsche 911
• LuK part number DMF115

Detailed Description

LuK DMF115 is a clutch flywheel designed as a dual mass replacement for the Porsche 911. The flywheel is individually tuned for the vehicle application, helping preserve the drivetrain characteristics expected in this platform. Its 24.4-inch diameter, 14.75-inch inner diameter, -0.366-inch cup depth, and 135 teeth provide the dimensional profile needed for proper fitment and starter compatibility. This part cross-references Porsche 99711401200 and LuK NDMF115 for the same application.

Using the correct dual mass flywheel matters on the Porsche 911 because the flywheel helps isolate engine vibration from the transmission. LuK DMF115 is built to replace the original-style unit rather than a solid flywheel conversion, which helps maintain the intended clutch and gearbox behavior.

What It Helps Address

• Excess drivetrain vibration during acceleration and shifting
• Harsh clutch engagement caused by worn flywheel damping
• Starter ring gear engagement issues related to tooth wear
• Transmission noise linked to flywheel damping loss
• Premature wear on drivetrain components from incorrect flywheel type

Installation Notes and Tips

Verify all dimensions and tooth count against the removed part before installation. On 2005-2008 Porsche 911 models, confirm that the clutch system is specified for a dual mass flywheel and that the replacement matches the original step height and diameter. Inspect the clutch assembly, release components, and related hardware for wear before reassembly.

Professional installation is recommended for Porsche 911 clutch and flywheel service because correct alignment and torque procedures are critical to drivetrain performance.

Quality Assurance

LuK supplies OE-level drivetrain components and the DMF115 follows the original dual mass flywheel concept for the Porsche 911 platform. The part is built to the application-specific dimensions and damping requirements associated with this vehicle line.