Luk DMF149 Clutch Flywheel

LuK DMF149 Dual Mass Flywheel

The LuK DMF149 is a dual mass flywheel engineered for BMW sequential transmission applications where drivetrain smoothness and torsional control matter. Built around LuK’s OE-focused design approach, it is tuned to the vehicle application and sized with a 23 in. flywheel diameter, 17 in. inner diameter, and 130 teeth.

For BMW M5 and BMW M6 owners searching for a replacement flywheel by part number, DMF149 provides a direct-fit solution for the listed sequential transmission applications. The LuK DMF149 is also referenced by cross numbers 4150392100 and NDMF149 for the same application.

Key Features

• Dual mass flywheel design for torsional damping and smoother power delivery
• 23 in. flywheel diameter with 17 in. inner diameter
• 130-tooth ring gear configuration
• Flywheel cup depth/step height: -3 mm (-0.118 in.)
• Application-specific tuning for BMW sequential transmission fitments
• OE-style replacement from LuK, part number DMF149

Detailed Description

LuK DMF149 is a clutch flywheel built for 2006 BMW M6, 2006-2010 BMW M5, and 2007-2009 BMW M6 sequential transmission applications. As a dual mass flywheel, it helps isolate drivetrain vibration and maintain the rotational characteristics expected in high-output BMW M5 and BMW M6 drivetrains. The specified diameter, tooth count, and step height are important for proper clutch engagement and transmission compatibility, making this part number DMF149 a precise match for the listed vehicles.

What It Helps Address

• Excess drivetrain vibration transmitted through the clutch system
• Harsh engagement or inconsistent take-up during shifting
• Wear associated with mismatched solid flywheel conversions
• Noise and driveline stress in sequential transmission applications
• Fitment issues when replacing the original BMW flywheel

Installation Notes and Tips

Verify the vehicle’s transmission type before ordering; this flywheel is listed for sequential transmission applications only. Confirm the flywheel diameter, tooth count, and step height against the original unit before installation. For BMW M5 and BMW M6 fitment, inspect the clutch system, starter engagement surface, and related drivetrain components during service to ensure the replacement flywheel is installed to specification.

Quality Assurance

LuK supplies OE-level drivetrain components and tunes this dual mass flywheel to the specific vehicle application rather than using a universal design. That application-specific engineering is important for maintaining the intended driveline behavior in BMW M5 and BMW M6 sequential transmission models.