Cardone 54-74827 Power Brake Booster

Vacuum Power Brake Booster for GM Vans

Restore consistent brake assist with this remanufactured Cardone Vacuum Power Brake Booster, part number 54-74827. Built for direct replacement use on select Chevrolet, Pontiac, Buick, Saturn, and Oldsmobile applications, it is engineered to match original equipment performance and fitment.

Cardone’s Vacuum Power Brake Booster line focuses on remanufactured OE-style replacement parts for dependable pedal assist and straightforward installation. This unit is 100% tested, finished with rust-prohibitive protection, and supplied with seals and check valves installed for reliable operation.

Key Features

• Remanufactured to match original equipment performance
• 100% tested for fit and function
• Dual diaphragm design for vacuum-assisted braking
• Steel construction with gray finish
• 100% 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 Description

The Cardone 54-74827 power brake booster is a vacuum-operated brake assist component built for vehicles that use a dual diaphragm booster design. It features a 10.915-inch diaphragm diameter, M10x1.5 master cylinder stud thread size, and a steel housing finished in gray. The booster is remanufactured to OE-level specifications and tested before release to help ensure proper pedal feel and braking response.

Fits 2005-2009 Chevrolet Uplander, N/A; 1999-2009 Pontiac Montana, N/A; 2002-2007 Buick Rendezvous, N/A; 2005-2007 Buick Terraza, N/A; 2005-2007 Saturn Relay, N/A; 2001-2005 Pontiac Aztek, N/A; 1997-2004 Oldsmobile Silhouette, N/A; and 1997-1999 Pontiac Trans Sport, N/A. This part cross-references Oldsmobile 18029880 and Pontiac 15189237 for the same application.

What It Helps Address

• Hard brake pedal feel caused by a weak booster
• Reduced vacuum assist during braking
• Inconsistent pedal response in stop-and-go driving
• Brake system performance issues on vehicles lacking a master cylinder
• Replacement needs for worn or corroded booster assemblies

Installation Notes

Verify the vehicle’s booster style, diaphragm diameter, and master cylinder stud thread size before installation. This unit does not include a master cylinder. The package includes the booster and instruction manual only. Confirm the application matches the listed Chevrolet Uplander, Pontiac Montana, Buick Rendezvous, Buick Terraza, Saturn Relay, Pontiac Aztek, Oldsmobile Silhouette, or Pontiac Trans Sport fitment before beginning service.

Quality Assurance

Cardone remanufactures this booster to OE performance standards and tests every unit for fit and function. The design review process includes updates where applicable, and the finished part uses OE-quality seals and check valves to support dependable operation.