Cardone 54-77042 Power Brake Booster

Reliable Vacuum Power Brake Booster for Ford Escape and Mazda Tribute

The Cardone 54-77042 Vacuum Power Brake Booster is designed to restore proper brake assist functionality in select Ford, Mazda, and Mercury vehicles. This remanufactured power brake booster features a durable steel construction and a dual diaphragm style to ensure consistent braking performance.

• Remanufactured power brake booster with dual diaphragm design
• Diaphragm diameter of 9.56 inches (242.824 mm) for optimal vacuum assist
• Constructed from durable steel with a gray finish
• Includes booster, instruction manual, and master cylinder neck seal
• Compatible with Ford Escape, Mazda Tribute, and Mercury Mariner models
• Master cylinder stud thread size M8 x 1.25

Product Details and Specifications

This Cardone Vacuum Power Brake Booster (part number 54-77042) is engineered with a dual diaphragm style that provides enhanced vacuum assist for improved brake pedal feel and reduced driver effort. The diaphragm measures 9.56 inches in diameter, ensuring sufficient surface area for effective brake boosting. Made from steel, the booster is finished in gray to resist corrosion and wear. This remanufactured unit does not include a master cylinder but features a master cylinder stud thread size of M8 x 1.25 for compatibility with factory components. The package includes the booster itself, an instruction manual for installation guidance, and a master cylinder neck seal to maintain system integrity.

About the Cardone Vacuum Power Brake Booster Line

The Cardone Vacuum Power Brake Booster product line focuses on remanufactured brake boosters that meet or exceed OEM specifications. These boosters are designed to provide reliable vacuum assist for a variety of vehicle applications, including the Ford Escape, Mazda Tribute, and Mercury Mariner. The line emphasizes durability and consistent performance, making it a practical replacement option for restoring brake system function.

Common Brake Issues Addressed

• Reduced brake pedal responsiveness or increased pedal effort
• Hissing sounds indicating vacuum leaks in the booster
• Brake pedal sinking or failure to hold pressure
• Loss of power assist causing unsafe braking conditions
• Brake system warning lights related to booster malfunction

Installation Notes and Tips

• Ensure compatibility with Ford Escape, Mazda Tribute, or Mercury Mariner models before installation
• Follow the included instruction manual carefully for proper mounting and connection
• Check master cylinder stud thread size (M8 x 1.25) for fitment with existing components
• Inspect vacuum lines and seals for leaks during installation
• Bleed the brake system after installation to remove air and ensure proper function

Quality Assurance and Warranty

This remanufactured Cardone power brake booster undergoes rigorous testing to meet quality standards and restore reliable brake assist performance. While specific warranty details are not provided, Cardone products typically come with limited warranties covering defects in materials and workmanship. Refer to Cardone’s warranty policy for exact coverage information.