LuK LMC399 Clutch Master Cylinder

The LuK LMC399 Clutch Master Cylinder is a high-quality OE replacement component designed to restore proper hydraulic clutch operation in manual transmission vehicles. As an original equipment supplier, LuK engineers each master cylinder to meet or exceed OEM specifications for precise fit, form, and function.

Key Features:

• OE-quality construction for reliable, long-lasting performance
• Converts clutch pedal force into hydraulic pressure for smooth clutch engagement
• Manufactured by Schaeffler under the LuK brand, a leader in hydraulic clutch actuation technology
• Designed to maintain proper clutch pedal feel and response
• Direct replacement for factory master cylinder

The clutch master cylinder is a critical component of the hydraulic release system, serving as the connection between the clutch pedal and slave cylinder. When the clutch pedal is depressed, the master cylinder pressurizes hydraulic fluid that actuates the slave cylinder to disengage the clutch. A failing master cylinder can cause difficulty shifting, soft pedal feel, or complete clutch failure. This LuK replacement restores proper hydraulic function for smooth, reliable clutch operation.