MPA Electrical B1011 Power Brake Booster

Overview of MPA Electrical Reman Vacuum Power Brake Booster

The MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl (Part Number B1011) is designed as a standard replacement power brake booster for Jeep Grand Cherokee models. This remanufactured vacuum booster enhances braking performance by providing reliable vacuum assistance without including the master cylinder.

• Standard replacement brake service grade
• Vacuum booster type with dual diaphragm design
• Metal housing for durability
• Diaphragm diameter approximately 230 mm (9.06 inches)
• Includes two mounting studs with 8 x 1.25 mm master cylinder stud thread size
• Remanufactured product condition

Product Line Details: Reman Vac Pwr Brake Booster w/o Master Cyl

This product is part of the MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl line, which focuses on remanufactured vacuum power brake boosters without the master cylinder included. This line provides a cost-effective solution for restoring brake booster function while allowing customers to retain their existing master cylinder. The boosters feature a dual diaphragm design housed in metal for consistent vacuum assistance and durability.

Detailed Product Description

The MPA Electrical B1011 power brake booster is engineered for Jeep Grand Cherokee vehicles requiring a reliable vacuum-assisted braking system. Its dual diaphragm type ensures balanced pressure distribution, improving pedal feel and braking response. The metal housing offers structural integrity, while the booster’s diaphragm diameter of 230.12 mm (9.06 inches) supports effective vacuum generation. This remanufactured booster does not include the master cylinder, gasket, seal, or mounting bracket, so it is intended for users replacing only the booster component. The unit mounts using two studs with a master cylinder stud thread size of 8 x 1.25 mm, matching factory specifications for a secure fit.

Common Applications and Issues Addressed

• Restores vacuum assist in Jeep Grand Cherokee braking systems
• Replaces faulty or leaking power brake boosters
• Improves brake pedal responsiveness and reduces pedal effort
• Addresses hard brake pedal or increased stopping distance
• Eliminates hissing sounds caused by diaphragm leaks

Installation Notes and Tips

When installing the MPA Electrical B1011 power brake booster, ensure the master cylinder is compatible and properly aligned with the booster studs. Since this unit does not include a gasket or seal, reuse existing components if in good condition or source replacements separately. Verify the mounting studs and thread sizes match the Jeep Grand Cherokee specifications to avoid fitment issues. Bleed the brake system after installation to remove air and ensure optimal brake performance.

Quality Assurance and Warranty

This remanufactured power brake booster undergoes thorough inspection and testing to meet standard replacement quality requirements. While specific warranty details are not provided, remanufactured parts typically come with limited warranties covering defects in workmanship and materials. Using this booster helps maintain the safety and reliability of the Jeep Grand Cherokee braking system.