Dynamite Friction 355-45006 Brake Master Cylinder

Brake Master Cylinder for GM Full-Size Cars

The Dynamite Friction DFC Brake Master Cylinder 355-45006 is a direct-fit hydraulic brake component for select Buick, Cadillac, Oldsmobile, and Pontiac applications. It is built for drivers replacing a worn or leaking master cylinder on vehicles such as the Buick LeSabre, Cadillac DeVille, Cadillac Fleetwood, Oldsmobile 98, Oldsmobile Delta 88, and Pontiac Bonneville.

Key Features

• Brake master cylinder for hydraulic brake system service
• Brand line: DFC Brake Master Cylinder
• Part number 355-45006 for catalog and fitment lookup
• Compatible with select 1986-1990 GM full-size sedans
• Application-specific fitment for standard and non-ABS configurations where noted

Fitment Details

• Fits 1987-1990 Buick LeSabre, N/A.
• Fits 1990 Cadillac DeVille, N/A, Standard.
• Fits 1990 Cadillac Fleetwood, N/A, Except ABS.
• Fits 1986-1990 Oldsmobile 98, N/A.
• Fits 1986-1990 Oldsmobile Delta 88, N/A.
• Fits 1987-1990 Pontiac Bonneville, N/A.
• Fits 1986-1989 Cadillac DeVille, N/A.
• Fits 1986-1989 Cadillac Fleetwood, N/A.

What This Part Helps Address

• Brake pedal travel that feels excessive or inconsistent
• External brake fluid leakage at the master cylinder
• Loss of hydraulic pressure in the brake system
• Soft or sinking brake pedal complaints
• Brake performance issues tied to a worn master cylinder

Installation Notes

Verify the vehicle’s brake system configuration before ordering, especially on 1990 Cadillac Fleetwood applications noted as except ABS. Confirm the existing master cylinder design, brake line routing, and mounting style against the original part number 355-45006 before installation. After replacement, the brake system should be properly bled and checked for leaks and pedal feel.

Quality Assurance

Dynamite Friction DFC Brake Master Cylinder components are cataloged for specific vehicle applications to support accurate replacement selection. Use the fitment data above to confirm the correct match for your Buick LeSabre, Cadillac DeVille, Cadillac Fleetwood, Oldsmobile 98, Oldsmobile Delta 88, or Pontiac Bonneville.