Luk LSC643 Clutch Slave Cylinder

LuK LSC643 Clutch Slave Cylinder

The LuK LSC643 clutch slave cylinder is a hydraulic manual transmission component for select Volkswagen applications. It supports clutch release operation in vehicles such as the Golf R, GTI, Jetta, Golf Alltrack, Golf SportWagen, Beetle, Golf, and Passat.

Key Features

• Hydraulic clutch slave cylinder for manual transmission systems
• OE-focused design from LuK, a Schaeffler brand with deep clutch release system expertise
• Direct replacement part for select Volkswagen manual transmission applications
• Cross-references Four Seasons 73643 and Sachs SB60338 for the same application
• Part number LSC643 for catalog and fitment verification

Fitment Details

• Fits 2022-2024 Volkswagen Golf R, N/A
• Fits 2015-2019 Volkswagen Golf R, N/A
• Fits 2015-2023 Volkswagen GTI, N/A
• Fits 2019-2023 Volkswagen Jetta, N/A
• Fits 2015 Volkswagen Jetta, N/A
• Fits 2017-2019 Volkswagen Golf Alltrack, N/A
• Fits 2017-2019 Volkswagen Golf SportWagen, N/A
• Fits 2015 Volkswagen Golf SportWagen, N/A
• Fits 2015 Volkswagen Beetle, N/A
• Fits 2012-2015 Volkswagen Golf, N/A
• Fits 2013-2015 Volkswagen Passat, N/A

What It Helps Address

• Hard or inconsistent clutch pedal release
• Hydraulic fluid leakage at the clutch release system
• Difficulty disengaging the clutch during shifting
• Clutch pedal travel issues caused by a worn slave cylinder
• Manual transmission engagement problems in Volkswagen models

Installation Notes

Verify the vehicle’s year, model, and manual transmission configuration before ordering. Confirm the part number LSC643 against the existing unit and compare the OE reference numbers during diagnosis. For Volkswagen Golf SportWagen applications, check the listed 2015 notes for Sachs Clutch and LuK Clutch references.

Quality Assurance

LuK has extensive experience in hydraulic clutch release systems, backed by Schaeffler’s development work in clutch release technology. That engineering background supports consistent fitment and function across select Volkswagen manual transmission applications.