Luk DMF073 Clutch Flywheel

LuK DMF073 Dual Mass Flywheel

The LuK DMF073 is a dual mass flywheel engineered for BMW applications that require precise drivetrain damping and smooth clutch engagement. It is built around LuK’s original dual-mass design, with tuning matched to the vehicle application for consistent transmission behavior.

Fits 1998-2000 BMW Z3 and 1999 BMW M3, making it a direct-fit choice for BMW Z3 flywheel replacement and 1999 BMW M3 clutch flywheel service.

Key Features

• Part number: DMF073
• Flywheel diameter: 24.1 in. / 9.488 in.
• Flywheel inner diameter: 15.2 in. / 5.984 in.
• Flywheel cup depth / step height: -0.146 in. / -3.7 mm
• 113 teeth for proper starter engagement
• Dual mass design helps isolate drivetrain vibration
• Cross-reference part numbers include 50-2823 and 21212228091

Application Details

LuK DMF073 is a clutch flywheel for BMW Z3 and BMW M3 applications listed above. The dual mass construction is used to reduce the transfer of engine torsional vibration into the gearbox, helping maintain smoother clutch operation and more controlled driveline response.

This part number, DMF073, is specified for vehicles where the flywheel dimensions, tooth count, and step height must match the original setup. For BMW Z3 and BMW M3 owners, that dimensional accuracy is important when replacing a worn flywheel or servicing the clutch system.

What It Helps Address

• Clutch chatter during engagement
• Excess drivetrain vibration at idle or low speed
• Gearbox stress caused by uneven torsional pulses
• Premature wear on engine mounts from vibration transfer
• Starter engagement issues related to incorrect tooth count or flywheel dimensions

Installation Notes

Verify flywheel diameter, inner diameter, cup depth, and tooth count against the original part before installation. Because DMF073 is application-specific, confirm the BMW Z3 or BMW M3 fitment listed above and inspect the clutch system, rear main seal, and related wear items during service. Proper torque procedures and manufacturer service data should be followed during installation.

Quality Assurance

LuK is known for original-equipment-style dual mass flywheel engineering, and this part is tuned for the listed BMW applications rather than a universal fit. The design focus is on preserving drivetrain smoothness and reducing the risks associated with solid flywheel conversions in the wrong application.