Cardone 54-71076 Power Brake Booster

Vacuum Power Brake Booster for GM Applications

Cardone 54-71076 is a remanufactured vacuum power brake booster built to restore brake assist performance on select Buick, Cadillac, Chevrolet, and Oldsmobile vehicles. It is re-engineered and tested to match original equipment fit and function, with design updates used where they improve durability.

This Cardone Vacuum Power Brake Booster line focuses on OE-style replacement parts for direct service applications, including Buick Roadmaster, Chevrolet Caprice, and Oldsmobile Custom Cruiser models that use a vacuum-assisted brake system.

• Remanufactured to match O.E. performance
• Dual diaphragm style for vacuum brake assist
• 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 finish helps extend service life
• Master cylinder output rods are pre-adjusted when included
• Master cylinder stud thread size: M10x1.5
• Part number: 54-71076

Detailed Product Overview

Cardone 54-71076 is a remanufactured power brake booster designed for vehicles that require vacuum-assisted braking. The dual diaphragm design supports consistent pedal assist, while the steel housing and protective finish help the unit stand up to everyday underhood conditions. Each booster is tested before release to confirm proper operation, and the internal seals and check valves are replaced to support reliable performance. This part number 54-71076 is a direct-fit service replacement for select GM platforms, including Buick Roadmaster, Chevrolet Caprice, Cadillac Fleetwood, and Oldsmobile Custom Cruiser applications.

What It Helps Address

• Hard brake pedal feel caused by a weak or failing booster
• Reduced brake assist during normal vacuum brake operation
• Brake response issues related to internal booster wear
• Fitment problems from an incorrect replacement booster
• Corrosion-related service life loss on the original unit

Installation Notes and Fitment

Compatible With 1991-1993 Buick Roadmaster, N/A; 1993 Cadillac Commercial Chassis, N/A; 1993 Cadillac Fleetwood, N/A; 1992-1993 Chevrolet Caprice, N/A; 1991-1992 Oldsmobile Custom Cruiser, N/A; and 1991 Chevrolet Caprice, N/A. Notes vary by application: some vehicles require the brake code JM4, some are without master cylinder, and some are limited to vehicles lacking master cylinders. Verify the brake code on the Service Parts Identification sticker and confirm master cylinder configuration before installation.

Installation is straightforward when the vehicle’s brake code and mounting setup are confirmed in advance. Transfer and adjust related components as needed, and inspect the master cylinder, vacuum supply, and brake lines before completing the repair. This part cross-references Oldsmobile 18015380 for the same application.

Quality Assurance

Cardone remanufactures this booster to OE performance standards and tests every unit for fit and function. The remanufacturing process includes upgraded protection against rust where applicable, along with new seals and check valves to support dependable brake assist after installation.