Dynamic Friction 355-45019 Brake Master Cylinder

Brake Master Cylinder for GM Full-Size Sedans

The Dynamic Friction DFC Brake Master Cylinder, part number 355-45019, is a direct-fit brake hydraulic replacement for select 2004-2005 Buick, Cadillac, and Pontiac vehicles. It is built for drivers replacing a worn master cylinder on applications such as the Buick LeSabre, Buick Park Avenue, Cadillac DeVille, Cadillac Seville, and Pontiac Bonneville.

Key Features

• Brake master cylinder for brake hydraulic service
• Fits 2004-2005 Buick LeSabre, N/A
• Fits 2004-2005 Buick Park Avenue, N/A
• Fits 2004-2005 Cadillac DeVille, N/A
• Fits 2004 Cadillac Seville, N/A
• Fits 2004-2005 Pontiac Bonneville, N/A
• DFC Brake Master Cylinder product line
• Part number 355-45019

Detailed Description

DFC Brake Master Cylinder 355-45019 is a brake hydraulic component for select GM sedans from 2004-2005. Use this master cylinder when servicing the primary hydraulic unit that supplies brake pressure to the system. This part is listed for Buick LeSabre and Park Avenue, Cadillac DeVille and Seville, and Pontiac Bonneville applications, making it a focused replacement for common full-size GM brake service needs. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Brake pedal travel that feels excessive
• Loss of hydraulic pressure in the brake system
• Internal master cylinder leakage
• Brake warning concerns tied to master cylinder wear
• Uneven or inconsistent brake response

Installation Notes and Tips

Verify vehicle fitment by year, make, and model before installation. After master cylinder replacement, the brake system should be properly bled to remove air from the hydraulic lines. Inspect related brake hydraulic components, fluid condition, and sealing surfaces during service to help confirm a complete repair.

Quality Assurance

DFC Brake Master Cylinder 355-45019 is part of Dynamic Friction’s DFC Brake Master Cylinder line, a brake-focused product range for hydraulic replacement service.