Cardone 54-74821 Power Brake Booster

Reliable Vacuum Power Brake Booster for Select GM and Isuzu Models

The Cardone Vacuum Power Brake Booster 54-74821 is designed to restore proper brake assist function in compatible vehicles. Engineered with a dual diaphragm and durable steel construction, this remanufactured booster ensures consistent braking performance for Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models.

Key Features of Cardone 54-74821 Power Brake Booster

• Dual diaphragm style with a 10.915-inch (277.241 mm) diameter for effective vacuum assistance
• Constructed from steel for strength and durability
• Gray finish for corrosion resistance and long service life
• Includes booster and detailed instruction manual for installation
• Master cylinder stud thread size M10x1.5 for proper fitment
• Remanufactured product condition meeting OEM specifications

Detailed Overview of the Vacuum Power Brake Booster

This Cardone Vacuum Power Brake Booster (part number 54-74821) is part of the Vacuum Power Brake Booster product line, which focuses on delivering reliable vacuum-assisted braking components. The dual diaphragm design enhances braking responsiveness by providing balanced vacuum pressure, improving pedal feel and reducing driver effort. Its steel construction ensures structural integrity under demanding conditions. This booster is specifically remanufactured to meet or exceed original equipment standards, making it a practical replacement for worn or failing units.

Compatible Vehicles and Common Applications

This power brake booster is compatible with a range of GM and Isuzu vehicles, including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Notable compatible models include the Chevrolet Trailblazer, Trailblazer EXT, SSR, GMC Envoy, Envoy XL, Envoy XUV, Isuzu Ascender, Bravada, Rainier, Buick Rainier, Oldsmobile Bravada, and Saab 9-7x.

Issues Addressed by Cardone 54-74821 Brake Booster

• Reduced brake pedal assist causing hard or heavy pedal feel
• Vacuum leaks leading to inconsistent brake performance
• Brake pedal travel that is longer than normal
• Hissing sounds from the brake booster area indicating diaphragm failure
• Brake warning lights related to booster malfunction

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Follow the included instruction manual carefully for proper mounting and connection
• Check master cylinder stud thread size M10x1.5 for correct fitment
• Inspect vacuum lines and replace if damaged to maintain proper booster function
• Bleed the brake system after installation to remove air and ensure optimal braking

Quality Assurance and Warranty Information

Cardone remanufactured brake boosters undergo rigorous testing to meet OEM standards for performance and durability. While specific warranty details may vary, Cardone products typically include a limited warranty covering defects in materials and workmanship. This ensures confidence in the reliability and longevity of the 54-74821 Vacuum Power Brake Booster.