Luk LMC428 Clutch Master Cylinder

Clutch Master Cylinder for Mercedes-Benz Manual Transmissions

The LuK LMC428 clutch master cylinder is a new hydraulic replacement for Mercedes-Benz manual transmission applications. It is built for direct service on select C-Class and SLK models, with installation instructions included for a more straightforward repair.

• New clutch master cylinder
• Installation instructions included
• Push rod included
• Pre-filled fluid: No
• Pre-bled system: No
• Heat shield included: No
• Clutch slave cylinder included: without clutch slave cylinder

Fitment and Application Details

Compatible with 2012 Mercedes-Benz C250, 2008-2011 Mercedes-Benz C300, 2009-2011 Mercedes-Benz SLK300, 2006-2008 Mercedes-Benz SLK280, 2003-2007 Mercedes-Benz C230, 2006-2007 Mercedes-Benz C350, 2005-2007 Mercedes-Benz SLK350, 2003-2005 Mercedes-Benz C320, and 2001-2003 Mercedes-Benz C240. This part number, LMC428, is also referenced for select hydraulic clutch repair applications on Mercedes-Benz manual transmission vehicles.

LuK has extensive experience in clutch release systems and hydraulic clutch actuation. The LMC428 follows that background with a replacement design focused on restoring clutch pedal hydraulic function in the listed Mercedes-Benz models. Cross-reference part numbers include Dayco 72428 and AMS Automotive M1108 for the same application.

Common Problems This Part Addresses

• Soft or inconsistent clutch pedal feel
• Hydraulic fluid leakage at the master cylinder
• Difficulty disengaging the clutch
• Delayed or incomplete clutch release
• Loss of hydraulic pressure in the clutch system

Installation Notes

Verify vehicle fitment by year and model before installation. Because this unit is not pre-filled or pre-bled, the hydraulic system requires proper filling and bleeding after installation. Use the included installation instructions and inspect the clutch hydraulic line, pedal linkage, and slave cylinder condition during service. The push rod is included; the clutch slave cylinder is not included.

Quality Assurance

LuK is recognized for its engineering work in hydraulic clutch release systems and complete clutch actuation components. This new LMC428 clutch master cylinder is built for service replacement on the listed Mercedes-Benz applications and is backed by LuK manufacturing expertise.