Luk DMF134 Clutch Flywheel

LuK DMF134 Dual Mass Flywheel Overview

The LuK DMF134 is a dual mass flywheel built for BMW applications that require precise torsional damping and smooth drivetrain operation. It is fine-tuned for the vehicle platform to help reduce the stress that can occur when a solid flywheel is used in place of the original dual mass design.

Compatible With BMW Z4, 135i, 335i, 335i xDrive, 535i, and 535i xDrive applications listed below, this LuK clutch flywheel is engineered around OE-style dimensions and tooth count for proper transmission engagement.

Key Features

• Part number: DMF134
• Dual mass flywheel design for drivetrain damping
• Flywheel diameter: 24.4 in. (9.606 in. listed in alternate units)
• Flywheel inner diameter: 15.5 in. (6.102 in. listed in alternate units)
• Flywheel cup depth/step height: -0.362 in. (-9.2 mm listed in alternate units)
• Number of teeth: 115
• OE-style fitment for BMW manual transmission applications

Detailed Description

LuK DMF134 is a replacement clutch flywheel designed to match the original dual mass flywheel function on select BMW models. The dual mass construction helps isolate engine vibration from the transmission, which is important on higher-torque BMW 135i, 335i, and 535i platforms as well as Z4 applications. The measured flywheel dimensions and 115-tooth ring gear support correct starter engagement and installation alignment. This part number, DMF134, is a direct-fit style solution for drivers replacing a worn or damaged flywheel on BMW Z4 and related 3 Series and 5 Series vehicles.

This part cross-references 4150467100 and 21207590942 for the same application.

Vehicle Fitment

• Fits 2011-2016 BMW Z4, N/A
• Fits 2009 BMW Z4, N/A
• Fits 2010 BMW 135i, N/A
• Fits 2010 BMW 335i, N/A
• Fits 2010 BMW 335i xDrive, N/A
• Fits 2010 BMW 535i, N/A
• Fits 2010 BMW 535i xDrive, N/A
• Fits 2010 BMW Z4, N/A, Single Clutch
• Fits 2009 BMW 135i, N/A, From 01/2009
• Fits 2009 BMW 335i, N/A, From 01/2009
• Fits 2009 BMW 335i xDrive, N/A, From 01/2009
• Fits 2009 BMW 535i, N/A, From 02/01/2009
• Fits 2009 BMW 535i xDrive, N/A, From 02/01/2009

What It Helps Address

• Excess drivetrain vibration and harshness
• Wear related to using a solid flywheel in place of a dual mass unit
• Starter engagement issues tied to incorrect ring gear tooth count
• Transmission shock during clutch operation
• Stress on engine mounts and related drivetrain components

Installation Notes and Tips

Confirm the vehicle’s transmission configuration and build date before ordering, especially for 2009 BMW 135i, 335i, 335i xDrive, 535i, and 535i xDrive applications with date-specific fitment notes. Verify flywheel diameter, inner diameter, step height, and tooth count against the removed part before installation. For best results, inspect the clutch assembly, release components, and rear main seal during service so the new flywheel is installed onto a clean, properly prepared drivetrain.

Quality Assurance

LuK is known for OE-level drivetrain components, and this DMF134 dual mass flywheel follows that original-equipment approach to fit and function for BMW applications.