MPA Electrical B1438 Power Brake Booster

Reman Vacuum Brake Booster for Ford Aspire

MPA Electrical B1438 is a remanufactured vacuum power brake booster built for 1994-1997 Ford Aspire applications. It is engineered to deliver strong braking assist with reduced pedal effort, helping restore consistent brake feel in daily driving.

Built as a standard replacement vacuum booster, this unit uses a metal housing and a 242.57 mm (9.55 in.) diaphragm diameter. It is supplied without a master cylinder and is specified for Ford Aspire brake booster replacement needs.

Key Features

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Metal housing construction
• 242.57 mm / 9.55 in. diaphragm diameter
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket not included
• 2 mounting studs with 8 x 1.25 mm master cylinder stud thread size

Product Details

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement boosters that are tested for vacuum sealing and pressure transfer performance. B1438 follows that approach with remanufactured components and end-of-line testing to verify operation before release. This part cross-references Ford F4BZ2005B for the same application.

Compatible With 1994-1997 Ford Aspire brake booster replacement applications, this MPA Electrical B1438 unit is a direct-fit style solution for restoring vacuum-assisted braking performance. It is a practical choice when the original booster shows signs of internal leakage, reduced assist, or inconsistent pedal response.

What It Helps Address

• Hard brake pedal feel
• Reduced vacuum assist
• Brake booster vacuum leakage
• Inconsistent pedal response during braking
• Booster wear on high-mileage Ford Aspire vehicles

Installation Notes

Verify the existing booster configuration, master cylinder mounting, and stud thread size before installation. Because the master cylinder is not included, transfer or replace related brake components as needed during service. Confirm proper vacuum line connection and pedal linkage alignment after installation on 1994-1997 Ford Aspire models.

Quality Assurance

MPA Electrical states that these brake boosters are tested at the end of production using proprietary equipment to confirm vacuum seal integrity and pressure transfer performance. The remanufactured design uses specially treated replacement components to support reliable braking assist.