Cardone 54-71054 Power Brake Booster

Vacuum Power Brake Booster for GM P-Series Applications

Cardone 54-71054 is a remanufactured vacuum power brake booster built to restore OE-style brake assist and pedal response. It is engineered for select Chevrolet P20, P30 and GMC P2500, P3500 applications with the correct brake code and without a master cylinder.

The Cardone Vacuum Power Brake Booster line focuses on remanufactured brake boosters that are re-engineered, tested, and finished for dependable service on GM chassis-cab and motorhome platforms.

Key Features

• Remanufactured to match original equipment performance
• Dual diaphragm design with a 10.4 in. diaphragm diameter
• Steel construction with gray finish
• 100% tested for fit and function
• O.E.-quality seals and check valves installed
• Rust-prohibitive finishing process for added durability
• Master cylinder output rods are pre-adjusted when included
• Master cylinder not included

Detailed Description

This Cardone power brake booster, part number 54-71054, is built for drivers who need a direct replacement vacuum booster for GM forward control and motorhome chassis applications. The dual diaphragm layout helps deliver consistent brake assist, while the remanufactured steel housing is finished to resist corrosion and support long-term service. Cardone 54-71054 is 100% tested before release to help ensure proper fit and function on the intended Chevrolet and GMC platforms.

Cross-reference part numbers for this application include Chevrolet 18006574 and GMC 18029974.

What It Helps Fix

• Hard brake pedal feel caused by a weak or failing booster
• Reduced vacuum assist during braking
• Brake response issues on GM P20, P30, P2500, and P3500 chassis applications
• Corrosion-related booster housing wear
• Fitment problems from an incorrect replacement booster

Installation Notes and Fitment

Compatible with select 1981-1993 Chevrolet and GMC vehicles. Fits 1993 Chevrolet P30, N/A; 1993 GMC P3500, N/A; 1985-1992 Chevrolet P30, N/A; 1985-1992 GMC P3500, N/A; 1985-1989 Chevrolet P20, N/A; 1985-1989 GMC P2500, N/A; 1981-1984 Chevrolet P20, N/A; and 1981-1984 GMC P2500, N/A. Verify the brake code on the Service Parts Identification sticker before ordering, and confirm the vehicle is without a master cylinder where required.

Use the existing master cylinder stud thread size specification of M10x1.5 when checking replacement fitment. This booster is intended for vacuum brake booster applications only and is not supplied with a master cylinder.

Quality Assurance

Cardone remanufactures this booster to OE performance standards and tests every unit for reliable operation. The unit also receives O.E.-quality seals and check valves plus a rust-prohibitive finish to support durability in service.