Cardone 54-77079 Power Brake Booster

Cardone Vacuum Power Brake Booster 54-77079

Cardone 54-77079 is a remanufactured vacuum power brake booster built for direct replacement on select Jeep Wrangler applications. It is re-engineered and tested to match original equipment performance, with fit and function verified before release.

Key Features

• Remanufactured to match O.E. performance
• Single-diaphragm design with a 9.635 in. (244.729 mm) diaphragm diameter
• Steel housing with gray finish
• 100% tested for reliable performance
• O.E.-quality seals and check valves installed on every unit
• Rust-prohibitive finish helps extend service life
• Master cylinder output rods are pre-adjusted when included
• Package contents: booster, instruction manual, and M/C neck seal

Product Details

The Cardone Vacuum Power Brake Booster line focuses on remanufactured brake boosters that are inspected, upgraded where needed, and tested to deliver original-equipment-style operation. Part number 54-77079 uses a single diaphragm and M8 x 1.25 master cylinder stud thread size, with a steel construction and gray coating for a clean, service-ready appearance. This part cross-references Jeep OE numbers 68045999AA and 68045999AB for the same application.

Compatible with 2009-2011 Jeep Wrangler models with Heavy Duty Brakes and without Master Cylinder, and 2011 Jeep Wrangler models with Light Duty Brakes and without Master Cylinder. Use Cardone 54-77079 when replacing a vacuum power brake booster on a Jeep Wrangler that matches these configurations.

Common Repair Symptoms

• Hard brake pedal feel
• Reduced brake assist from a failing vacuum booster
• Brake pedal effort that increases during stops
• Vacuum leak noise near the brake booster area
• Inconsistent brake response after booster wear or internal seal failure

Installation Notes

Verify the vehicle’s brake package, model year, and master cylinder configuration before installation. Cardone 54-77079 is supplied without a master cylinder, so transfer or replace related components as needed based on the vehicle setup. Follow the included instruction manual, confirm the pushrod and mounting alignment, and inspect the vacuum connection and brake system for leaks after installation.

Quality Assurance

Each unit is remanufactured, tested, and checked for fit and function to support dependable brake assist performance. Cardone’s process includes O.E.-quality sealing components and a rust-resistant finish to help maintain service life in normal operating conditions.