Cardone 54-74820 Power Brake Booster

Overview of Cardone Vacuum Power Brake Booster 54-74820

The Cardone Vacuum Power Brake Booster 54-74820 is a remanufactured power brake booster designed for select Buick, Cadillac, Oldsmobile, and Pontiac models. Engineered with a dual diaphragm style and a 10.915-inch diameter, this gray steel booster provides reliable vacuum assistance to improve braking performance.

• Remanufactured power brake booster with dual diaphragm design
• Diaphragm diameter: 10.915 inches (277.241 mm)
• Constructed from durable steel with a gray finish
• Compatible with Buick Aurora, Cadillac DeVille, DTS, Seville, Oldsmobile Aurora, and Pontiac Bonneville, LeSabre, Lucerne, Park Avenue, Riviera
• Master cylinder not included; M10x1.5 master cylinder stud thread size
• Includes booster and instruction manual

Detailed Product Description

This Cardone Vacuum Power Brake Booster 54-74820 is part of the Vacuum Power Brake Booster product line, which focuses on delivering dependable vacuum-assisted braking components for a range of domestic vehicles. The dual diaphragm style enhances vacuum efficiency, providing consistent brake pedal feel and improved stopping power. Its 10.915-inch diaphragm diameter ensures compatibility with specific GM models, including Buick Aurora and Cadillac DeVille. The steel construction offers durability and resistance to wear, while the gray finish helps protect against corrosion. This booster is remanufactured to meet OEM specifications, ensuring it performs to factory standards.

Compatible Vehicles and Applications

• Buick Aurora
• Cadillac DeVille, DTS, Seville
• Oldsmobile Aurora
• Pontiac Bonneville, LeSabre, Lucerne, Park Avenue, Riviera

This power brake booster is designed specifically for these models, making it a suitable replacement part for restoring proper brake assist function.

Common Issues Addressed by This Brake Booster

• Reduced brake pedal responsiveness or increased pedal effort
• Hissing sounds indicating vacuum leaks in the booster
• Brake pedal sinking or spongy feel during braking
• Loss of power assist causing longer stopping distances
• Brake warning light related to booster malfunction

Installation Notes and Tips

Installation of the Cardone 54-74820 power brake booster requires removal of the old booster and proper alignment with the master cylinder studs (M10x1.5 thread size). It is important to follow the included instruction manual carefully to ensure correct vacuum hose connections and secure mounting. Bleeding the brake system after installation is recommended to remove any air and restore optimal brake performance.

Quality Assurance and Warranty

This remanufactured power brake booster undergoes rigorous testing to meet or exceed OEM standards. Cardone provides a limited warranty on this part, covering defects in materials and workmanship. The booster is designed to deliver reliable service life when installed and maintained according to manufacturer guidelines.