Cardone 54-74802 Power Brake Booster

Vacuum Power Brake Booster Overview

The Cardone 54-74802 vacuum power brake booster is a remanufactured replacement built to restore brake assist and pedal feel on select GM full-size cars. It is re-engineered and tested to match original equipment performance, with design updates applied where needed for added durability.

This Cardone Vacuum Power Brake Booster line focuses on direct-fit service parts for vehicles that need dependable vacuum-assisted braking. For applications such as Buick LeSabre, Pontiac Bonneville, and Oldsmobile 88, the goal is consistent fitment, stable assist, and reliable operation after replacement.

Key Features

• Remanufactured to match O.E. performance
• Dual diaphragm design for vacuum brake assist
• 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
• Guaranteed fit and function

Detailed Product Description

Cardone part number 54-74802 is a remanufactured vacuum power brake booster with a dual diaphragm style and a 10.915-inch diaphragm diameter. It uses an M10x1.5 master cylinder stud thread size and is supplied without a master cylinder. Each unit is re-engineered from original design data, then tested to verify performance before release.

Compatible With 1994-1999 Buick LeSabre, 1994-1999 Oldsmobile 88, 1996-1999 Oldsmobile LSS, 1994-1999 Pontiac Bonneville, 1997-1998 Oldsmobile Regency, 1994-1996 Buick Park Avenue, and 1994-1996 Oldsmobile 98. This part cross-references Pontiac 18018941 and 18029959 for the same application.

Common Brake Assist Issues It Can Address

• Hard brake pedal feel from a weak or failed booster
• Reduced vacuum assist during normal braking
• Brake pedal effort that increases over time
• Loss of consistent stopping response after booster wear
• Fitment problems when replacing an original booster on select GM sedans

Installation Notes

Verify the vehicle application, master cylinder stud thread size, and booster configuration before installation. This unit is intended for vehicles lacking master cylinders, and the booster should be inspected for vacuum supply condition, mounting alignment, and pedal linkage setup during replacement. Follow the included instruction manual for installation steps and final checks.

Quality Assurance

Each Cardone remanufactured power brake booster is 100% tested to confirm fit and function. The unit is built with O.E.-quality seals and check valves, and the rust-prohibitive finish is used to help extend service life. Part number 54-74802 is engineered for dependable replacement performance on select Buick, Oldsmobile, and Pontiac applications.