URO 21521152658 Clutch Master Cylinder

BMW Clutch Master Cylinder Replacement

This URO clutch master cylinder restores hydraulic clutch function for select BMW manual transmission applications. It is a direct replacement for worn or leaking units and helps bring back the original clutch pedal feel.

• Direct-fit replacement for BMW manual transmission models
• Restores proper clutch operation after fluid loss or internal wear
• Helps return OE-style pedal feel when depressing the clutch
• Built with high-quality materials for durability
• Guaranteed fitment for listed applications
• URO part number 21521152658

Detailed Product Information

Part number 21521152658 is a clutch master cylinder for BMW vehicles equipped with a manual transmission. It replaces the hydraulic master cylinder that transfers pedal movement into clutch system pressure, making it a practical solution for BMW 318i, 325i, 325is, 325iX, M3, 528e, 535i, and other listed models. This URO replacement is built to address common clutch hydraulic wear and leakage concerns while maintaining the original driving feel expected in BMW manual transmission systems.

This part cross-references Beck/Arnley 072-8279 for the same application.

Common Problems This Part Can Solve

• Clutch pedal sinking or losing resistance
• Visible hydraulic fluid leakage at the master cylinder
• Incomplete clutch disengagement during shifting
• Hard or inconsistent clutch pedal operation
• Loss of OE-style clutch pedal feel

Installation Notes and Fitment

Compatible with select BMW manual transmission vehicles. Fits 1984-1985 BMW 318i, 1987-1992 BMW 325i, 1991 BMW 318is, 1987-1991 BMW 325is, 1988-1991 BMW 325iX, 1988-1991 BMW M3, 1985-1989 BMW 635CSi, 1982-1988 BMW 528e, 1988 BMW 535is, 1988 BMW M5, 1987-1988 BMW M6, 1984-1987 BMW 325e, 1986-1987 BMW 325es, 1985-1987 BMW 535i, 1985 BMW 524td, and 1983-1984 BMW 533i.

Before installation, verify the hydraulic line connection and inspect the clutch system for contamination or additional wear. After replacement, bleed the clutch hydraulic system thoroughly to restore consistent pedal operation.

Quality Assurance

URO backs this clutch master cylinder with a 24-month unlimited mileage warranty. The unit uses high-quality materials and is engineered as a replacement for worn or leaking original components.