MPA Electrical B1277 Power Brake Booster

Remanufactured Vacuum Brake Booster for Isuzu

MPA Electrical B1277 is a remanufactured vacuum power brake booster built for direct replacement on select Isuzu applications. It is engineered for strong braking assist with reduced pedal effort, making it a practical choice for restoring consistent brake feel on 1991-1995 Isuzu Pickup and 1991-1993 Isuzu Amigo models.

Key Features

• Remanufactured vacuum booster for standard replacement service
• Metal housing construction
• 245.87 mm / 9.68 in diaphragm diameter
• Master cylinder stud thread size: 8 x 1.25 mm
• Two mounting studs
• Master cylinder not included
• Brake pedal rod extension not included
• Mounting bracket, gasket or seal, and front seal not included

Product Line Details

MPA Electrical reman brake boosters are built around replacement components and treated parts selected to improve vacuum sealing and pressure transfer. Each unit is end-of-line tested with proprietary equipment to verify performance before it leaves the remanufacturing process. Part number B1277 is part of this reman vacuum brake booster line for drivers replacing a worn booster assembly.

Detailed Description

This power brake booster is designed for vehicles that need restored vacuum assist and more predictable pedal response. For Isuzu Pickup and Isuzu Amigo brake repair, B1277 provides the booster assembly only, allowing reuse or separate replacement of the master cylinder as needed. This part cross-references OE-style numbers 8970219410 and 8970219411 for the same application.

What It Helps Fix

• Hard brake pedal feel
• Reduced vacuum assist
• Delayed or inconsistent brake response
• Booster diaphragm or seal wear
• Loss of braking assist from a failing vacuum booster

Installation Notes and Tips

Verify master cylinder stud thread size, mounting stud layout, and booster depth before installation. Because the master cylinder is not included, inspect the existing master cylinder and related brake components for wear, leaks, or contamination before reassembly. Confirm fitment against the vehicle application and brake system configuration on 1991-1995 Isuzu Pickup and 1991-1993 Isuzu Amigo models.

Quality Assurance

MPA Electrical subjects each remanufactured booster to 100% end-of-line testing using proprietary test equipment to confirm braking assist performance and vacuum integrity. Part number B1277 is built as a standard replacement brake booster for dependable service in the specified Isuzu applications.