Dynamite Friction 355-47146 Brake Master Cylinder

Brake Master Cylinder for GM G-Series and P-Series

The Dynamite Friction DFC Brake Master Cylinder, part number 355-47146, is a direct-fit hydraulic brake component for select Chevrolet and GMC heavy-duty vans and chassis cab applications. It is built for vehicles using SRW configurations, JB7/JD7 brake setups, and the listed rear drum specifications.

Key Features

• Brake master cylinder for brake hydraulic service
• Fits select Chevrolet G30, P30, and P20 applications
• Fits select GMC G3500 and P3500 applications
• Application-specific coverage for SRW and JB7/JD7 brake configurations
• Part number 355-47146 for catalog and service matching

Vehicle Fitment

• Fits 1992-1995 Chevrolet G30, SRW, 13 x 2 1/2 inch rear shoe.
• Fits 1991-1993 Chevrolet P30, SRW, JB7 and JD7, 13 x 2 1/2 inch rear shoe, vacuum booster.
• Fits 1985-1991 Chevrolet G30, brake hydraulic hose: SRW.
• Fits 1985-1990 Chevrolet P30, SRW, 2 1/2 inch rear shoe, JB7, JD7.
• Fits 1985-1989 Chevrolet P20, 13 inch rear drum, JB7, JD7.
• Fits 1992-1995 GMC G3500, SRW, 13 x 2 1/2 inch rear shoe.
• Fits 1992-1993 GMC P3500, SRW, JB7, JD7, 13 x 2 1/2 inch rear shoe, vacuum booster.
• Fits 1991 GMC P3500, SRW, JB7 and JD7, 13 x 2 1/2 inch rear shoe, vacuum booster.
• Fits 1990 GMC P3500, SRW, JB7 and JD7, 13 x 2 1/2 inch rear shoe.
• Fits 1985-1991 GMC G3500, brake hydraulic hose: SRW.
• Fits 1985-1989 GMC P2500, 13 inch rear drum.
• Fits 1985-1989 GMC P3500, SRW and 2 1/2 inch rear shoe, JB7 and JD7.

What This Part Helps Address

• Low or inconsistent brake pedal response
• Internal master cylinder leakage
• Brake fluid loss at the hydraulic unit
• Uneven hydraulic pressure in the brake system
• Service replacement for worn GM brake master cylinder assemblies

Installation Notes

Verify the brake system configuration before ordering, including SRW, JB7/JD7, rear shoe size, and vacuum booster usage where listed. Confirm the vehicle year, make, and model against the fitment notes for Chevrolet G30, Chevrolet P30, GMC G3500, and GMC P3500 applications. Brake system bleeding is required after master cylinder replacement.

Quality Assurance

Dynamite Friction DFC Brake Master Cylinder 355-47146 is cataloged for specific GM brake hydraulic applications to support accurate parts matching for service work.