Cardone 53-6821 Power Brake Booster

Reliable Vacuum Power Brake Booster for Kia Soul

The Cardone Vacuum Power Brake Booster 53-6821 is designed to restore proper brake assist function for your Kia Soul. This remanufactured power brake booster features a durable steel construction and a single diaphragm design to ensure consistent braking performance.

• Compatible with Kia Soul models
• Remanufactured for reliable performance
• Single diaphragm style with 10.53-inch (267.462 mm) diameter
• Constructed from durable steel material
• Includes booster, instruction manual, and master cylinder neck seal
• Master cylinder stud thread size M8 x 1.25
• Gray color finish

About the Cardone Vacuum Power Brake Booster Line

The Vacuum Power Brake Booster product line by Cardone focuses on remanufactured components that meet or exceed OEM specifications. This line is engineered to provide dependable vacuum assist for braking systems, helping to maintain proper pedal feel and stopping power. The 53-6821 model is part of this line, offering a single diaphragm design optimized for Kia Soul vehicles.

Product Details and Specifications

This power brake booster features a single diaphragm style with a diameter of 10.53 inches (267.462 mm), providing the necessary vacuum assist to reduce pedal effort. The steel construction ensures durability and resistance to wear. The booster is finished in gray and includes essential installation components such as the master cylinder neck seal and an instruction manual. Note that the master cylinder is not included with this part. The master cylinder stud thread size is M8 x 1.25, compatible with the Kia Soul brake system.

Common Issues Addressed by This Brake Booster

• Increased brake pedal effort or hard brake pedal
• Reduced braking power or longer stopping distances
• Hissing sounds from the brake booster area
• Brake pedal sinking or inconsistent pedal feel
• Vacuum leaks affecting brake assist performance

Installation Notes and Tips

Installation of the Cardone 53-6821 Vacuum Power Brake Booster requires basic mechanical skills and proper tools. Ensure the brake system is depressurized before removal. Follow the included instruction manual carefully to install the booster and master cylinder neck seal. Verify the master cylinder stud thread size (M8 x 1.25) matches your vehicle’s specifications. After installation, bleed the brake system to remove any air and test pedal feel before driving.

Quality Assurance and Warranty

This remanufactured power brake booster undergoes thorough inspection and testing to meet quality standards. Cardone provides a limited warranty on this part, covering defects in materials and workmanship. Refer to the warranty documentation for specific terms and conditions.