Luk DMF123 Clutch Flywheel

LuK DMF123 Dual Mass Flywheel

The LuK DMF123 is a dual mass flywheel built for specific Volkswagen and Volvo applications, with dimensions and tooth count matched to the original drivetrain setup. It is engineered to reduce the driveline stress that can occur when a solid flywheel is used in place of the OE-style dual mass design.

Key Features

• Flywheel diameter: 24 in. (9.449 in. metric listing also provided)
• Flywheel inner diameter: 15.5 in. (6.102 in. metric listing also provided)
• Flywheel cup depth/step height: -0.315 in. (-8 mm)
• 135-tooth ring gear configuration
• OE-style dual mass construction for application-specific tuning
• Part number: DMF123

Detailed Description

LuK DMF123 is a clutch flywheel designed as a dual mass flywheel for exact-fit drivetrain applications. LuK states that each DMF is fine-tuned for the vehicle type it serves, helping maintain the smooth engagement and torsional isolation expected from the original setup. This matters on vehicles such as the Volkswagen Beetle, Volkswagen Golf, Volkswagen Jetta, Volkswagen Passat, and Volvo C30, where the flywheel specification must match the clutch and transmission system precisely. This part cross-references Sachs DMF91179 for the same application.

What It Helps Address

• Excess drivetrain vibration from a worn or incorrect flywheel
• Noise and harshness during clutch engagement
• Premature wear on engine mounts caused by drivetrain shock
• Gearbox stress associated with solid flywheel conversions
• Crankshaft damage linked to improper flywheel damping

Installation Notes and Tips

• Verify the 135-tooth count and flywheel dimensions before installation.
• Match the flywheel to the exact vehicle and clutch configuration listed for your application.
• Inspect the clutch system, transmission input components, and mounting surfaces during replacement.
• Use the correct service procedures for dual mass flywheel installation and torque sequencing.
• Fits 2013-2014 Volkswagen Beetle, LuK Clutch.
• Fits 2013-2014 Volkswagen Beetle, Sachs Clutch.
• Fits 2010-2014 Volkswagen Golf, Luk Dry Clutch.
• Fits 2012-2014 Volkswagen Jetta, LuK Clutch.
• Fits 2009 Volkswagen Jetta, LuK Clutch.
• Fits 2012-2014 Volkswagen Passat, LuK Clutch.
• Fits 2010-2011 Volkswagen Jetta, Luk Dry Clutch.
• Fits 2007-2010 Volvo C30.

Quality Assurance

LuK is the original equipment brand referenced by the manufacturer for this DMF application, and the part is built to the dimensional and functional requirements of the listed vehicles. Part number DMF123 is intended for direct application matching where the OE-style dual mass flywheel specification is required.