MPA Electrical B1074 Power Brake Booster

Reman Vacuum Brake Booster for Ford and Mercury

MPA Electrical B1074 is a remanufactured vacuum power brake booster built for direct replacement on select Ford Explorer, Explorer Sport, Explorer Sport Trac, and Mercury Mountaineer applications. It is engineered to deliver strong braking assist with reduced pedal effort, using a dual-diaphragm design and tested vacuum sealing for consistent brake feel.

The MPA Electrical reman brake booster line focuses on restored performance through specially treated replacement components and end-of-line testing. For buyers searching for a reman vac pwr brake booster w/o master cyl for 1999-2005 Ford Explorer or 1999-2001 Mercury Mountaineer, B1074 provides a service-grade replacement built around the original vacuum booster layout.

Key Features

• Part number B1074
• Remanufactured vacuum power brake booster
• Dual-diaphragm design for braking assist
• Standard replacement brake service grade
• Metal housing construction
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket not included
• Front seal not included
• 2 mounting studs
• Master cylinder stud thread size: 3/8-16
• Diaphragm diameter: 250.7 mm / 9.87 in

Detailed Description

MPA Electrical B1074 is a reman vac pwr brake booster w/o master cyl designed for vacuum-assisted braking systems that require dependable pedal assist and stable pressure transfer. The dual diaphragm layout helps support consistent brake response, while the remanufactured housing and treated internal components are used to restore vacuum integrity and operating performance. This part cross-references 1L5Z2005AA and XL2Z2005AA for the same application.

Compatible With 1999-2001 Ford Explorer, N/A; 2001-2003 Ford Explorer Sport, N/A; 2001-2005 Ford Explorer Sport Trac, N/A; and 1999-2001 Mercury Mountaineer, N/A. B1074 is a practical replacement choice when servicing a worn booster on a Ford Explorer or Mercury Mountaineer with vacuum brake assist.

What It Helps Fix

• Hard brake pedal feel
• Reduced brake assist from a leaking booster
• Vacuum loss affecting pedal response
• Uneven or inconsistent braking assist
• Booster-related brake warning symptoms tied to vacuum transfer issues

Installation Notes and Tips

Verify the master cylinder, pedal rod interface, and mounting pattern before installation. This booster does not include the master cylinder, gasket or seal, front seal, mounting bracket, or brake pedal rod extension, so reuse or source the required related components as needed. Confirm the 3/8-16 master cylinder stud thread size and the 2-stud mounting layout against the original unit before assembly.

For best results, inspect vacuum hoses, check valves, and the master cylinder condition during service. Proper bleeding and system inspection after installation help restore normal brake pedal feel on Ford Explorer, Explorer Sport Trac, Explorer Sport, and Mercury Mountaineer applications.

Quality Assurance

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