LuK Clutch Slave Cylinder

The LuK clutch slave cylinder, also called a hydraulic clutch slave cylinder or clutch release cylinder, is the hydraulic component that carries clutch pedal input to the clutch release mechanism. When you press the pedal, hydraulic pressure from the master cylinder moves the slave cylinder piston. That movement disengages the clutch and lets you shift gears smoothly.

Key Features:

• Engineered by LuK, a clutch systems brand with extensive original equipment experience
• Built to deliver consistent, controlled clutch release and a smooth pedal feel
• Precision-machined bore and piston with seals designed to hold pressure and resist leakage
• Durable construction for long service life under repeated clutch cycles
• Works alongside LuK clutch kits, flywheels, and release bearings for a complete clutch repair

A worn or leaking slave cylinder can cause a soft or sinking pedal, difficulty shifting, or incomplete clutch disengagement. Replacing it restores reliable hydraulic operation. It is a good idea to replace it when the clutch is serviced. After installation, bleed the hydraulic system according to the vehicle manufacturer's procedure.