Dynamic Friction 355-63004 Brake Master Cylinder

Brake Master Cylinder for Mercedes-Benz

The Dynamic Friction DFC Brake Master Cylinder, part number 355-63004, is a direct-fit brake hydraulic replacement for select Mercedes-Benz models. It is built for 1984-1985 Mercedes-Benz 300SD, 380SE, 380SL, 500SEC, and 500SEL applications with the listed production notes.

Key Features

• Brake master cylinder for brake hydraulic service
• Compatible with select 1984-1985 Mercedes-Benz models
• Fits 1985 Mercedes-Benz 300SD, 380SE, 380SL, 500SEC, and 500SEL
• Fits 1984 Mercedes-Benz 300SD from 8/83 and 380SE, 380SL, 500SEC, 500SEL from 7/83
• DFC Brake Master Cylinder line from Dynamic Friction
• Part number 355-63004 for application matching

Detailed Description

Use the Dynamic Friction DFC Brake Master Cylinder 355-63004 when replacing a worn or leaking master cylinder on compatible Mercedes-Benz brake systems. This brake master cylinder is listed for 1984-1985 Mercedes-Benz 300SD, 380SE, 380SL, 500SEC, and 500SEL models, with production-date notes that matter for correct fitment. The DFC Brake Master Cylinder line is positioned as a dedicated brake hydraulics replacement option for these vehicles.

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

What It Helps Address

• Brake pedal that sinks under steady pressure
• External brake fluid leakage at the master cylinder
• Uneven or inconsistent hydraulic pressure in the brake system
• Soft or spongy brake pedal feel
• Brake warning concerns tied to master cylinder wear

Installation Notes and Tips

Verify the vehicle production date before ordering, since the 1984 applications are split by build date. Confirm the brake line routing, reservoir configuration, and mounting style against the original unit before installation. After replacement, bleed the brake system thoroughly and inspect for leaks at all hydraulic connections.

Quality Assurance

Part number 355-63004 is cataloged under Dynamic Friction’s DFC Brake Master Cylinder line for brake hydraulic replacement use on the listed Mercedes-Benz applications.