MPA Electrical B4248 Power Brake Booster

Overview of MPA Electrical Reman Power Brake Booster

The MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl (Part Number B4248) is designed as a standard replacement component for select Infiniti models. This remanufactured power brake booster provides reliable braking assistance by enhancing pedal effort without including the master cylinder.

• Remanufactured power brake booster for Infiniti Q50 and Q60
• Standard replacement brake service grade
• Metal housing construction for durability
• Diaphragm diameter of 245.36 mm (9.66 inches)
• Four mounting studs with 8 x 1.25 mm master cylinder stud thread size
• Does not include master cylinder, brake pedal rod extension, gasket, seal, or mounting bracket

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

The Reman Vac Pwr Brake Booster w/o Master Cyl product line from MPA Electrical focuses on remanufactured vacuum power brake boosters that do not include the master cylinder. This line is intended for customers seeking a reliable replacement booster unit compatible with specific vehicle models, such as the Infiniti Q50 and Q60, while allowing reuse of the existing master cylinder and related components.

Detailed Product Description

This remanufactured power brake booster features a robust metal housing and a diaphragm diameter of approximately 245.36 mm (9.66 inches), which is critical for providing the necessary vacuum assist to the brake pedal. The unit mounts securely with four studs, each with an 8 x 1.25 mm thread size designed to fit the master cylinder studs on compatible Infiniti vehicles. As a standard replacement part, it meets OEM specifications for performance and fitment without including additional hardware such as gaskets, seals, or mounting brackets.

Common Applications and Issues Addressed

• Restores proper brake pedal assist on Infiniti Q50 and Q60 models
• Replaces faulty or worn power brake boosters causing hard brake pedal feel
• Eliminates vacuum leaks that reduce braking efficiency
• Addresses inconsistent brake pedal response or increased pedal travel
• Solves issues related to brake booster diaphragm failure

Installation Notes and Tips

Installation requires removal of the existing power brake booster from the vehicle. Since this unit does not include the master cylinder or mounting hardware, ensure the original master cylinder and related components are inspected and reused if in good condition. Proper torque specifications should be followed for the four mounting studs with 8 x 1.25 mm threads. It is recommended to verify vacuum hose connections and check for leaks after installation.

Quality Assurance and Warranty

This MPA Electrical power brake booster is remanufactured to meet standard replacement quality standards. While specific warranty details are not provided, remanufactured parts typically undergo inspection and testing to ensure functionality and durability comparable to new components. Buyers should confirm warranty terms with the distributor or installer.