Cardone 52-7421 Power Brake Booster

Overview of Cardone Hydro-Boost Power Brake Booster 52-7421

The Cardone Hydro-Boost Power Brake Booster 52-7421 is a remanufactured hydraulic brake booster designed for select Chevrolet and GMC trucks. Engineered with cast iron construction and a black finish, this booster provides reliable braking assistance for heavy-duty applications.

• Remanufactured power brake booster with durable cast iron material
• Compatible with Chevrolet Silverado 1500, 2500 HD, 3500 HD, Sierra 2500 HD, 3500 HD, and Suburban 3500 HD
• Includes hydraulic booster, o-ring kit, and instruction sheet
• Master cylinder stud thread size: M12 x 1.75 / M10 x 1.5
• Does not include master cylinder
• Black finish for corrosion resistance

Detailed Product Description

This Cardone Hydro-Boost Power Brake Booster (part number 52-7421) is specifically designed to restore hydraulic brake assist functionality in compatible Chevrolet and GMC heavy-duty trucks. The booster is constructed from cast iron, ensuring strength and durability under demanding braking conditions. It comes remanufactured to meet OEM specifications and includes an o-ring kit and instruction sheet for proper installation. The booster does not include a master cylinder but fits master cylinders with stud thread sizes M12 x 1.75 or M10 x 1.5. Its black finish helps resist corrosion and wear over time.

The Hydro-Boost Power Brake Booster product line from Cardone focuses on hydraulic brake boosters that provide consistent braking performance for trucks requiring hydraulic assist systems. This part supports the braking systems of Chevrolet Silverado and GMC Sierra models, as well as the Suburban 3500 HD, ensuring compatibility with factory hydraulic brake configurations.

Common Applications and Issues Addressed

• Restores hydraulic brake assist in Chevrolet Silverado 1500, 2500 HD, 3500 HD, Sierra 2500 HD, 3500 HD, and Suburban 3500 HD
• Replaces faulty or leaking power brake boosters
• Solves issues with increased brake pedal effort or poor brake response
• Addresses hydraulic booster failure symptoms such as spongy brakes or brake drag
• Improves braking reliability in heavy-duty truck applications

Installation Notes and Tips

• Ensure compatibility with your vehicle’s master cylinder stud thread size (M12 x 1.75 or M10 x 1.5)
• Follow the included instruction sheet carefully for hydraulic line connections and mounting
• Inspect and replace any worn or damaged o-rings using the provided kit during installation
• Bleed the brake system thoroughly after installation to remove air from hydraulic lines
• Verify proper booster operation before road testing the vehicle

Quality Assurance and Warranty

The Cardone Hydro-Boost Power Brake Booster 52-7421 is remanufactured to meet or exceed OEM standards for performance and durability. Each unit undergoes rigorous testing to ensure reliable hydraulic assist function. While specific warranty details are not provided here, Cardone products typically include a limited warranty covering defects in materials and workmanship. Consult product documentation or Cardone directly for exact warranty terms.