Cardone 54-74829 Power Brake Booster

Vacuum Power Brake Booster for GM Trucks

Restore consistent brake assist with this Cardone remanufactured vacuum power brake booster. Built for direct replacement on select Chevrolet Silverado 1500, Silverado 1500 Classic, GMC Sierra 1500, and Sierra 1500 Classic applications, it is re-engineered and tested to match original equipment performance.

The Cardone Vacuum Power Brake Booster line focuses on remanufactured OE-style replacement parts with verified fitment, pre-adjusted output rods when included, and corrosion-resistant finishing for longer service life.

Key Features

• Remanufactured to match OE performance
• Dual diaphragm design with a 10.58 in. diaphragm diameter
• Steel housing with gray finish
• 100% tested for fit and function
• OE-quality seals and check valves installed on every unit
• Rust-prohibitive finish helps extend unit life
• Master cylinder output rods are pre-adjusted when included
• Master cylinder not included

Detailed Description

Cardone part number 54-74829 is a remanufactured power brake booster engineered for vacuum-assisted braking systems on GM full-size trucks. It uses a dual diaphragm layout to support brake assist performance and is built from steel with a gray protective finish. This booster is a direct-fit replacement for 2005-2006 Chevrolet Silverado 1500 and GMC Sierra 1500 models with brake codes JF3 or JF7, and 2007 Chevrolet Silverado 1500 Classic and GMC Sierra 1500 Classic models with brake codes JF3 or JF7. This part cross-references Chevrolet and GMC OE number 15840835 for the same application.

Common Repair Symptoms

• Hard brake pedal feel
• Reduced brake assist during stopping
• Vacuum booster leakage or loss of assist
• Brake pedal effort that increases over time
• Brake system performance issues after booster wear

Installation Notes

Verify the brake code on the Service Parts Identification sticker before ordering. This booster is for vehicles without the master cylinder, and the master cylinder is not included. Confirm the master cylinder stud thread size is M10x1.5 and compare the existing booster dimensions before installation. Fits 2005-2006 Chevrolet Silverado 1500, vacuum booster applications with brake code JF3 or JF7; fits 2007 Chevrolet Silverado 1500 Classic, vacuum power brake booster applications with brake code JF3 or JF7; fits 2005-2006 GMC Sierra 1500, vacuum booster applications with brake code JF3 or JF7; fits 2007 GMC Sierra 1500 Classic, vacuum power brake booster applications with brake code JF3 or JF7.

Quality Assurance

Cardone remanufactures this booster to OE-level specifications and tests every unit for reliable fit and function. The design includes OE-quality seals and check valves, along with a corrosion-resistant finish to support long-term service in daily-use brake systems.