Centric 130.43001 Brake Master Cylinder

Brake Master Cylinder for OE-Style Hydraulic Performance

The Centric Premium Brake Master Cylinder, part number 130.43001, is built for direct replacement in select compact GM and Isuzu applications. It is engineered to match original equipment fitment, configuration, and hydraulic performance, with a 0.8125 in. bore, 3 ports, and a 0.967 in. push rod length/depth.

Centric Premium Brake Master Cylinders are part of Centric’s brake hydraulic line, which covers master cylinders, wheel cylinders, brake hoses, repair kits, and remanufactured power boosters. This product line focuses on OE-style replacement parts with the correct casting design where applicable and complete cylinder assemblies that include reservoirs, switches, and floats when specified by the application.

Key Features

• Part number 130.43001 for select brake master cylinder applications
• 0.8125 in. cylinder bore diameter for hydraulic system compatibility
• 3-port design
• 0.967 in. push rod length/depth
• OE-style configuration and fitment
• Centric Premium Brake Master Cylinders line for brake hydraulic replacement

Application Details

Compatible with 1985-1989 Isuzu I-Mark, 1985-1988 Chevrolet Spectrum, 1985-1988 Pontiac Sunburst, and 1989 Geo Spectrum, excluding F41 package on the Spectrum applications noted. This Centric 130.43001 brake master cylinder is a direct-fit hydraulic replacement for vehicles that require the listed bore, port layout, and push rod dimensions. It is also cross-referenced to Dorman - First Stop M39547 for the same application.

What It Helps Fix

• Low or inconsistent brake pedal feel
• Internal master cylinder fluid bypass
• Brake fluid leakage at the master cylinder
• Uneven hydraulic pressure delivery to the brake system
• Brake warning concerns related to master cylinder wear

Installation Notes

Verify bore size, port count, and push rod depth before installation. Confirm vehicle fitment by year, make, model, and package details, especially on Chevrolet Spectrum and Geo Spectrum applications with F41 exclusions. After installation, bleed the brake system thoroughly and inspect all hydraulic connections for leaks.

Quality Assurance

Centric Premium Brake Master Cylinders are built to match OE quality, configuration, and fitment requirements for the listed applications. The Centric brake hydraulic program is designed around complete coverage for common hydraulic brake service needs, including direct replacement master cylinders for select Chevrolet, Pontiac, Geo, and Isuzu vehicles.