First Stop Brake Master Cylinder (MPN: M39077)

Precision-engineered OE replacement for reliable braking performance.

The First Stop Brake Master Cylinder is designed to meet the exact specifications of the original equipment master cylinder for specific vehicle models. This product is constructed from high-quality materials, ensuring durability and safety in braking performance. The cylinder housing is made to match the casting material of the original part, providing a precise fit and function.

This master cylinder features all rubber components made from a high-quality EPDM compound, which offers resistance to glycol-based brake fluid. It is manufactured entirely from new materials, ensuring that it is not remanufactured and meets the highest quality standards. The product adheres to rigorous SAE International standards, making it a reliable choice for vehicle maintenance.

Features

• Durable Design: All Rubber Components Are Made Of High-Quality EPDM Compound For Resistance To Glycol-Based Brake Fluid
• Precise Replacement: Cylinder Housing Is Constructed To Match The Casting Material Of The Original Part And Ensure Similar Performance
• 100 Percent New: Made Entirely Of New Materials, Not Remanufactured, To Ensure Highest Quality And Safety
• Strict Specifications: Made To Meet Rigorous SAE International Standards

Specifications

• Manufacturer: Dorman
• Manufacturer Part Number: M39077
• Condition: New
• Bore Diameter: 1.125 Inch
• Port Size: OEM
• Finish: OEM
• Color: Black/ Gold
• Material: Cast Iron
• Includes Reservoir: Yes

Compatibility / Fit

• 1980-1980 Checker Marathon
• 1978-1980 Chevrolet G10
• 1975-1980 Chevrolet G20
• 1974-1974 Chevrolet G20 Van
• 1975-1980 Chevrolet P10
• 1974-1974 Chevrolet P10 Van
• 1978-1978 GMC G15
• 1979-1980 GMC G1500
• 1975-1978 GMC G25
• 1974-1974 GMC G25/G2500 Van
• 1979-1980 GMC G2500
• 1975-1978 GMC P15
• 1974-1974 GMC P15/P1500 Van
• 1979-1980 GMC P1500

Technical Documents

• brakemastercylinder_is.pdf