Luk LMC678 Clutch Master Cylinder

LuK LMC678 Clutch Master Cylinder

The LuK LMC678 clutch master cylinder is a new hydraulic clutch release component for manual transmission systems. It is built for direct replacement service on select Ford Focus and Volvo C30, C70, S40, and V50 applications, with installation instructions and a push rod included.

Key Features

• New clutch master cylinder for manual transmission repair
• Includes installation instructions for setup guidance
• Push rod included
• Pre-filled fluid: No
• Pre-bled system: No
• Heat shield included: No
• Supplied without clutch slave cylinder
• LuK part number LMC678

Application Details

LuK has extensive experience in hydraulic clutch release systems, drawing on long-term development from mechanical to hydraulic designs. The LMC678 is a service replacement clutch master cylinder for vehicles that use a hydraulic clutch actuation setup, including 2016-2018 Ford Focus and select Volvo C30, C70, S40, and V50 models. This part cross-references Sachs SH5595 for the same application.

• Fits 2016-2018 Ford Focus, N/A
• Fits 2007-2012 Volvo C30, N/A
• Fits 2006-2010 Volvo C70, N/A
• Fits 2010 Volvo S40, N/A
• Fits 2004-2008 Volvo S40, N/A
• Fits 2010 Volvo V50, N/A
• Fits 2005-2007 Volvo V50, N/A

What It Helps Address

• Hard or inconsistent clutch pedal feel
• Loss of hydraulic pressure in the clutch release system
• Difficulty disengaging the clutch during shifting
• Fluid leakage from a worn master cylinder
• Clutch engagement issues caused by internal seal wear

Installation Notes

Use the included installation instructions during replacement. This unit is not pre-filled and is not pre-bled, so the hydraulic system must be filled and bled after installation. The clutch slave cylinder is not included, and no heat shield is supplied. Verify vehicle year and model before installation, and confirm the hydraulic line and push rod connection match the original setup.

Quality Assurance

LuK, part of Schaeffler, brings extensive engineering experience to complete clutch release systems and hydraulic clutch components. The LMC678 is a new part built for replacement service in the listed Ford and Volvo applications.