MPA Electrical B3093 Power Brake Booster

Overview

MPA Electrical B3093 is a remanufactured vacuum power brake booster for BMW applications that require a standard replacement unit without a master cylinder. It is engineered to deliver strong braking assist with reduced pedal effort, while helping maintain vacuum seal integrity and consistent pressure transfer.

This B3093 brake booster fits multiple BMW 5 Series, 7 Series, M5, and Z8 applications from the late 1990s through the early 2000s. It is a direct-fit service part for buyers replacing a worn or leaking booster on a BMW 525i, 530i, 540i, 528i, 740i, 740iL, 750iL, M5, or Z8.

Key Features

• Remanufactured vacuum brake booster for standard replacement service
• Metal housing construction for brake system durability
• Designed for maximum braking assist with minimal pedal effort
• Specially treated components help support vacuum sealing and pressure transfer
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket not included

Detailed Description

MPA Electrical B3093 is built for BMW brake system service where the booster is the failed component and the master cylinder is retained separately. The vacuum booster design uses two mounting studs and an 8x1.25 master cylinder stud thread size, making it important to verify the existing brake system configuration before installation. This part cross-references BMW 34331165541 for the same application.

As a remanufactured brake booster, B3093 is processed and tested to meet standard replacement needs for BMW 525i, 530i, and 540i models, along with other covered BMW applications. The unit is subjected to end-of-line testing to confirm function before release, and the remanufacturing process focuses on restoring vacuum assist performance and pressure transfer consistency.

What It Helps Fix

• Hard brake pedal feel
• Reduced braking assist
• Vacuum leakage in the booster assembly
• Inconsistent pedal response during braking
• Brake system performance loss from a worn booster

Installation Notes

Verify fitment by year, model, and brake system configuration before installation. This booster is supplied without a master cylinder, gasket or seal, front seal, brake pedal rod extension, or mounting bracket. Confirm the master cylinder stud thread size and mounting stud layout match the vehicle before service.

Quality Assurance

MPA Electrical subjects each unit to 100% end-of-line testing using proprietary equipment. The remanufactured construction and treated components are used to support vacuum seal integrity and reliable braking assist performance.