Luk DMF154 Clutch Flywheel

LuK DMF154 Dual Mass Flywheel

The LuK DMF154 is a dual mass flywheel engineered for BMW manual transmission applications that require precise torsional damping and smooth drivetrain operation. Built around the original LuK DMF design, it is tuned for specific vehicle applications such as the BMW 320i, 328i, 428i, 228i, Z4, and X1.

Key Features

• Dual mass flywheel design for reduced drivetrain vibration and improved torque transfer
• 24 in. flywheel diameter for application-specific fitment
• 15.5 in. inner diameter and 115 teeth
• Flywheel cup depth/step height: -0.362 in. (-9.2 mm)
• OE-style replacement for BMW manual transmission service
• Part number DMF154 for direct identification and ordering

Detailed Description

LuK DMF154 is a clutch flywheel built to match the needs of select BMW rear-wheel-drive and xDrive applications. The dual mass construction helps isolate engine pulses before they reach the transmission, which is important in vehicles such as the BMW 320i, BMW 328i, and BMW 428i where smooth engagement and drivetrain protection matter. With a 24-inch flywheel diameter, 15.5-inch inner diameter, and 115 teeth, this flywheel is specified for exact application matching rather than universal use. The LuK DMF154 part number is also referenced for BMW 228i, 228i xDrive, Z4, and X1 fitments listed below.

This part cross-references OE-style numbers 4150594100 and 21207638306 for the same application.

What It Helps Address

• Excessive drivetrain vibration at idle or during acceleration
• Harsh clutch engagement and driveline shudder
• Premature wear on engine mounts and transmission components
• Noise caused by worn or damaged flywheel damping elements
• Drivetrain stress that can contribute to gearbox or crankshaft damage

Installation Notes and Tips

Verify the flywheel diameter, tooth count, and cup depth before installation. Inspect the clutch assembly, release components, and rear main seal during service, and confirm the replacement matches the BMW application exactly. Proper torque procedures and clean mating surfaces are important for reliable operation. Fits 2014-2017 BMW 320i, N/A. Fits 2014-2016 BMW 228i, N/A. Fits 2015-2016 BMW 228i xDrive, N/A. Fits 2012-2016 BMW 328i, N/A. Fits 2014-2016 BMW 428i, N/A. Fits 2012-2016 BMW Z4, N/A. Fits 2014 BMW 328i xDrive, N/A. Fits 2014 BMW X1, N/A.

Quality Assurance

LuK is known for OE-level drivetrain components, and the DMF154 follows the original dual mass flywheel approach used for application-specific BMW fitment.