LuK LMC646 Clutch Master Cylinder

The LuK LMC646 is a precision-engineered clutch master cylinder designed to restore smooth clutch operation and reliable performance. As an original-equipment supplier, LuK develops performance specifications for individual vehicle applications, with each OEM part carefully crafted to suit the exact needs of specific vehicle years, brands and makes.

Key Features:

• Durable plastic housing construction for lightweight and corrosion resistance
• Pressure connection matched to LuK clutch lines with quick-release connector
• Multiple mounting options including central bayonet or axial/lateral flange screw connections
• Engineered and manufactured for exact fit, optimum function, and flawless performance with quality materials
• Optional dust shield and particle filter protection for harsh environmental conditions

When the driver pushes the clutch pedal down, the master cylinder converts pedal force into pressure, contributing to improved safety, comfort and throttle response. Under its LuK brand, Schaeffler has played a decisive role in the development of hydraulic clutch actuation technology, with each component engineered for flawless performance.

This direct-fit replacement master cylinder includes refill lines that may be supplied as rubber hose, smooth plastic tubing or corrugated tubing, either individually or preassembled. The OEM manufacturer part number is 5110581100.