Send steady hydraulic pressure to your brakes with this 1986-1987 Chevrolet Corvette master cylinder from Dorman First Stop, part number M39621. It is a direct-fit replacement for the 1986-1987 Chevrolet Corvette, all engines. Dorman engineers it to mirror the original master cylinder's design, function, and performance on that application. It is built from new, high-quality materials and is intended to provide a safe, durable replacement when the original unit is leaking or worn.
- Precise replacement: The aluminum cylinder housing is constructed to match the original part's housing material, for performance similar to the original.
- Durable design: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: Made entirely of new materials for quality and safety.
- Strict specifications: Made to meet rigorous SAE International standards.
Specifications: 0.875 in. bore diameter · 3 outlets, including an M12 x 1.0 rearward outlet and an M10 x 1.0 secondary outlet · primary outlet thread pitch of 1 mm · 2 mounting holes · single reservoir and cap included. Mounting hardware, mounting bracket, sensor, bleeder hoses, push rod, and brake booster are not included. Country of origin: Taiwan.
The master cylinder converts pedal force into fluid pressure for the brake lines. Signs it may need replacing include a soft or sinking pedal, fluid leaking at the cylinder, and a reservoir that keeps losing fluid. These symptoms can have other causes, so diagnose the system before replacing anything. If the master cylinder is the cause, this unit replaces it. Consult the vehicle service information for bench-bleeding and brake-bleeding procedures.
Interchange: 174-830 · 83-36063 · 100-3012 · M-82063 · 13-4001 · 10-4001 · 130.62063 · 355-47062
174830 · 8336063 · 1003012 · M82063 · 134001 · 104001 · 13062063 · 35547062 · 18M343 · M900549 · 12188 · MC507780 · 10052280 · M2188 · NM2188 · MC39621 · F115610 · MC115610
This part cross-references / interchanges with the following part numbers:
174-830, 18M343, 83-36063, M900549, 100-3012, M-82063, 12188, 13-4001, 10-4001, 130.62063, MC507780, 355-47062, 10052280, M2188, NM2188, MC39621, F115610, MC115610
