Cardone 54-77039 Power Brake Booster

Cardone Vacuum Power Brake Booster 54-77039

Cardone 54-77039 is a remanufactured vacuum power brake booster built for OE-style fit and function. It is engineered for Chevrolet HHR applications that require a replacement booster without a master cylinder, including 2008 models with Active Brake Control and 2009-2011 vehicles lacking a master cylinder.

Key Features

• Dual-diaphragm design for vacuum-assisted brake support
• Remanufactured to match original equipment performance
• 100% tested for fit and function before release
• Steel housing with gray finish and rust-prohibitive coating process
• 100% OE-quality seals and check valves installed
• Master cylinder output rods are pre-adjusted when included for easier installation
• Includes booster, instruction manual, and M/C neck seal

Product Details

This Cardone Vacuum Power Brake Booster is part of the Cardone remanufactured brake booster line, which focuses on restoring original braking performance with updated durability where applicable. The 54-77039 uses a dual diaphragm style with an 8.65-inch diaphragm diameter, steel construction, and an M8 x 1.25 master cylinder stud thread size. It is a remanufactured power brake booster for Chevrolet HHR owners looking for a direct replacement that matches OE operation and installation requirements. This part cross-references Chevrolet 15831183 for the same application.

What It Helps Fix

• Hard brake pedal feel caused by a weak or failing booster
• Reduced vacuum assist during braking
• Brake response issues related to booster diaphragm wear
• Vacuum leaks from aging booster seals or check valves
• Fitment problems from a damaged or incorrect replacement booster

Installation Notes

Verify that the vehicle is configured for a vacuum power brake booster and does not use a master cylinder with this application. Fits 2008 Chevrolet HHR, N/A, with Active Brake Control; without Master Cylinder; Vacuum Power Brake Booster. Fits 2009-2011 Chevrolet HHR, N/A, Fits vehicles lacking master cylinders.; Vacuum Power Brake Booster. Confirm master cylinder neck seal and mounting thread size before installation. Follow the included instruction manual and bleed/check the brake system after installation as required.

Quality Assurance

Cardone remanufactured power brake boosters are re-engineered and tested to meet OE performance targets. Each unit is 100% tested to confirm proper fit and function, and the finishing process is designed to help resist rust and extend service life.