Dorman Brake Master Cylinder

Application Summary: Chevrolet 1991-81, GMC 1991-89, GMC 1987-81

This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.

• Precise replacement - cylinder housing is constructed to match the casting material of the original part and ensure similar performance
• Durable design - all rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid
• 100% new - made entirely of new materials, not remanufactured, to ensure highest quality and safety
• Strict specifications - made to meet rigorous SAE International standards

Product Specifications
Bore Diameter: 24.4 mm; 36 mm
Forward Outlet Size: 9/16-18
Installation Hardware Included: No
Material: Aluminum
Number of Outlets: 2
Package Contents: Master Cylinder
Package Quantity: 1
Packaging Type: Box
Rearward Outlet Size: 1/2-20
Reservoir Included: Yes
Sensor Included: No