Dynamite Friction 355-31010 Brake Master Cylinder

DFC Brake Master Cylinder for BMW E28 and E24

The Dynamite Friction DFC Brake Master Cylinder, part number 355-31010, is a direct-fit brake hydraulic replacement for select BMW applications. It is built for drivers servicing brake pedal feel, hydraulic pressure, and master cylinder wear on classic BMW 5 Series and 6 Series models.

Key Features

• Brake master cylinder for brake hydraulic service
• Brand line: DFC Brake Master Cylinder
• Part number 355-31010 for accurate ordering and fitment lookup
• Compatible with select BMW 535i, 535is, M5, M6, and 635CSi applications
• Fits 1985-1989 BMW 635CSi, N/A
• Fits 1985-1988 BMW 535i, N/A
• Fits 1988 BMW 535is, N/A
• Fits 1988 BMW M5, N/A
• Fits 1987-1988 BMW M6, N/A

Detailed Description

This DFC Brake Master Cylinder is intended for BMW brake system repair where the original master cylinder has developed internal leakage, inconsistent pedal response, or reduced hydraulic performance. The 355-31010 application coverage includes 1985-1989 BMW 635CSi, 1985-1988 BMW 535i, 1988 BMW 535is, 1988 BMW M5, and 1987-1988 BMW M6. If you are searching for a BMW 535i brake master cylinder, BMW M5 brake master cylinder, or a 635CSi master cylinder replacement, this part number provides a focused fitment match.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Low or sinking brake pedal
• Brake fluid bypass inside the master cylinder
• Uneven hydraulic pressure in the brake system
• Delayed brake response from worn internal seals
• Brake warning concerns tied to master cylinder wear

Installation Notes and Tips

Verify brake line routing, reservoir condition, and mounting points before installation. After replacement, bleed the brake system thoroughly and inspect for leaks at all hydraulic connections. Confirm the part number 355-31010 against the vehicle’s brake system configuration before ordering.

Quality Assurance

DFC Brake Master Cylinder components are cataloged for specific vehicle applications to support accurate brake service selection. Use the listed fitment data to confirm compatibility with your BMW 635CSi, 535i, 535is, M5, or M6.