MPA Electrical B1039 Power Brake Booster

Reliable Power Brake Booster Replacement for GM Vehicles

The MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl (Part Number B1039) offers a dependable vacuum power brake booster solution for select Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed as a standard replacement, this remanufactured booster helps restore proper brake pedal feel and assist performance.

• Standard replacement grade for consistent brake performance
• Vacuum booster type with dual diaphragm design
• Metal housing for durability and long service life
• Compatible with Buick, Chevrolet, Oldsmobile, and Pontiac models including Bonneville, Cutlass series, El Camino, Grand Prix, Malibu, Monte Carlo, and Regal
• Does not include master cylinder, gasket, or mounting hardware
• Master cylinder stud thread size: 10 x 1.5 mm with 2 mounting studs
• Diaphragm diameter approximately 9.11 inches (231.39 mm)

About the Reman Vac Pwr Brake Booster w/o Master Cyl Product Line

The Reman Vac Pwr Brake Booster w/o Master Cyl product line from MPA Electrical focuses on remanufactured vacuum power brake boosters designed to meet standard replacement requirements. These boosters are rebuilt to restore original function without including the master cylinder, making them suitable for applications where the master cylinder is serviced separately. This product line emphasizes reliability and compatibility with classic GM vehicles.

Product Details and Specifications

This remanufactured power brake booster features a dual diaphragm design housed in metal for enhanced durability. The vacuum booster type ensures effective brake assist by utilizing engine vacuum to reduce pedal effort. With a diaphragm diameter of 231.39 mm (9.11 inches), it provides consistent braking response. The booster includes two mounting studs and a master cylinder stud thread size of 10 x 1.5 mm, designed to fit specific GM models without including the master cylinder or additional seals.

Common Applications and Problem Solving

• Restores brake pedal assist in Buick Bonneville and Chevrolet Malibu models
• Replaces worn or failing vacuum boosters in Pontiac Grand Prix and Oldsmobile Cutlass series
• Addresses hard brake pedal issues due to booster diaphragm failure
• Eliminates vacuum leaks causing reduced brake assist
• Suitable for vehicles requiring a remanufactured booster without master cylinder replacement

Installation Notes and Tips

Installation requires removal of the existing power brake booster and careful alignment of mounting studs. Since this unit does not include a master cylinder or mounting hardware, ensure compatibility with your vehicle’s existing components. Verify the master cylinder stud thread size (10 x 1.5 mm) matches your setup. Bleeding the brake system after installation is recommended to maintain proper brake function.

Quality Assurance and Warranty

This MPA Electrical power brake booster is remanufactured to meet standard replacement specifications, ensuring reliable performance. While specific warranty details are not provided, remanufactured parts typically undergo inspection and testing to confirm functionality and durability. Confirm warranty terms with your parts provider prior to installation.