Cardone 54-71055 Power Brake Booster

Vacuum Power Brake Booster for OE-Style Brake Assist

The Cardone 54-71055 vacuum power brake booster is a remanufactured replacement built to restore brake assist and pedal response on select Buick, Cadillac, and Oldsmobile applications. It is re-engineered and tested to match original equipment performance, with design updates used where they improve durability.

Compatible With 1987-1990 Cadillac Eldorado, 1987-1990 Cadillac Seville, 1987-1990 Oldsmobile Toronado, 1987-1990 Buick Riviera, and 1988-1990 Buick Reatta vehicles that use a vacuum power brake booster and do not include a master cylinder.

Key Features

• Remanufactured to match O.E. performance
• Dual diaphragm design for brake assist support
• 10.4 in. (264.16 mm) diaphragm diameter
• Steel housing 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

Product Details

Cardone Vacuum Power Brake Booster 54-71055 is engineered for direct replacement service on the listed GM platforms. The dual diaphragm layout supports consistent vacuum-assisted braking, while the remanufactured steel construction is finished to resist corrosion. This Cardone brake booster is intended for drivers replacing a worn or leaking booster on a 1987-1990 Cadillac Eldorado, 1987-1990 Cadillac Seville, 1987-1990 Oldsmobile Toronado, 1987-1990 Buick Riviera, or 1988-1990 Buick Reatta.

This part cross-references Oldsmobile 18013154 and 18016443 for the same application. Part number 54-71055 is also useful when searching for a remanufactured power brake booster for these GM vehicles.

Common Problems This Part Can Address

• Hard brake pedal feel from a weak or failed booster
• Reduced vacuum assist during braking
• Brake pedal effort that increases over time
• Vacuum leaks related to booster wear
• Corrosion or finish breakdown on the original unit

Installation Notes

Verify vehicle application before installation, especially on models listed as lacking a master cylinder. Confirm the master cylinder stud thread size is M10x1.5 and compare the original booster dimensions and mounting points before removal. The package includes the booster and instruction manual only.

For best results, inspect vacuum supply, check valves, and related brake system components during replacement. Part number 54-71055 is a direct-fit style replacement for the specified Buick, Cadillac, and Oldsmobile applications when the original configuration matches the fitment data.

Quality Assurance

Cardone remanufactured power brake boosters are re-engineered and tested to meet original equipment performance targets. Each unit is 100% tested for fit and function, with O.E.-quality seals and check valves installed during remanufacturing to support reliable operation.