MPA Electrical B1158 Power Brake Booster

Reliable Remanufactured Vacuum Power Brake Booster

The MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl (Part Number B1158) offers a dependable replacement solution for select Chevrolet and Toyota models. Designed as a remanufactured unit, this vacuum power brake booster restores braking performance without including the master cylinder.

• Standard replacement brake service grade
• Vacuum booster type for efficient brake assist
• Metal housing for durability and strength
• Diaphragm diameter of 247.4 mm (9.74 inches)
• Two mounting studs for secure installation
• Master cylinder not included
• No brake pedal rod extension or mounting bracket included

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

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 designed to meet standard replacement requirements. These units are engineered to provide reliable brake assist performance for vehicles that require a booster without the master cylinder included, making them suitable for specific brake system repairs or upgrades.

Product Details and Specifications

The B1158 power brake booster features a vacuum booster type that enhances braking force by utilizing engine vacuum. Its metal housing ensures structural integrity and long-term durability. The diaphragm diameter measures 247.4 mm (9.74 inches), which is critical for proper brake assist function. This unit includes two mounting studs with an 8 x 1.25 mm master cylinder stud thread size, ensuring compatibility with the brake system of Chevrolet and Toyota vehicles such as the Corolla and Prizm. Note that this booster does not include the master cylinder, gasket, front seal, or mounting bracket, so these components must be sourced separately if needed.

Compatible Vehicles and Common Applications

• Chevrolet Prizm brake system replacement
• Toyota Corolla vacuum power brake booster upgrade
• Addressing weak or unresponsive brake pedal feel
• Resolving brake assist failure due to booster malfunction
• Replacing worn or damaged brake booster components

Installation Notes and Tips

When installing the MPA Electrical B1158 power brake booster, ensure the mounting studs align correctly with the vehicle’s firewall and master cylinder mounting points. Since the master cylinder and related seals are not included, verify the condition of these parts before installation. Proper vacuum hose connections are essential for optimal booster performance. It is recommended to consult the vehicle’s service manual for torque specifications and installation procedures specific to Chevrolet Corolla and Toyota Prizm models.

Quality Assurance and Warranty

This remanufactured power brake booster undergoes thorough inspection and testing to meet standard brake service grade requirements. While specific warranty details are not provided, remanufactured parts from MPA Electrical typically adhere to industry standards for reliability and performance. Buyers should confirm warranty terms at the point of purchase.