Cardone 54-71048 Power Brake Booster

Vacuum Power Brake Booster for GM Applications

The Cardone 54-71048 vacuum power brake booster is a remanufactured replacement built to restore brake assist and pedal response on select Chevrolet, GMC, and Oldsmobile vehicles. It is engineered and tested to match original equipment performance for a direct-fit repair.

Compatible with 1988-1994 Chevrolet S10, Chevrolet S10 Blazer, GMC S15, GMC S15 Jimmy, GMC Sonoma, GMC Jimmy, GMC Jimmy, and Oldsmobile Bravada applications listed below, this Cardone Vacuum Power Brake Booster supports reliable vacuum-assisted braking in vehicles without a master cylinder.

Key Features

• Remanufactured to match O.E. performance
• Dual-diaphragm design for vacuum brake assist
• 10.4 in. diaphragm diameter (264.16 mm)
• Steel construction with gray finish
• 100% O.E. quality seals and check valves installed
• 100% tested for fit and function
• Rust-prohibitive finishing process helps extend service life
• Master cylinder output rods are pre-adjusted when included
• Guaranteed fit and function

Product Details

Cardone’s Vacuum Power Brake Booster line focuses on remanufactured brake boosters that are re-engineered, inspected, and tested to meet original equipment standards. For this application, part number 54-71048 uses a dual diaphragm layout and steel housing to deliver consistent brake assist while maintaining OE-style fitment. The booster includes the booster assembly and instruction manual, and it does not include a master cylinder.

This part cross-references Chevrolet, GMC, and Oldsmobile OE number 18014925 for the same application. The 54-71048 is a practical replacement for drivers servicing GM compact truck and SUV brake systems, including Chevrolet S10 Blazer and GMC Jimmy applications.

What It Helps Fix

• Hard brake pedal feel caused by a weak or failed booster
• Reduced brake assist during normal stopping
• Vacuum loss affecting pedal response
• Brake system performance issues tied to worn internal seals or check valves
• Fitment problems from non-OE-style replacement boosters

Installation Notes

Verify brake code and booster stamping before ordering. Several listed applications require brake code JM3 and booster stamped ST, and some vehicles are specified without a master cylinder. Confirm the master cylinder stud thread size is M10x1.5 and compare the original booster configuration before installation. Use the included instruction manual and follow factory service procedures for vacuum line, pushrod, and mounting checks.

Quality Assurance

Each Cardone remanufactured power brake booster is 100% tested to confirm fit and function before release. The unit is re-engineered to match original equipment performance, with design updates applied where applicable to improve durability over the original part.