Turn every press of the brake pedal into hydraulic pressure with the Dorman First Stop master cylinder for the 1977-1982 Chevrolet Corvette, part number M39052. This new unit is precision-engineered to match the original master cylinder's design, function, and performance. It installs as a direct-fit replacement for the 1977-1982 Chevrolet Corvette with all engines, with one used per vehicle.
- Precise replacement: The cylinder housing is cast iron. It is constructed to match the casting material of the original part and is intended to provide similar performance.
- Durable design: Every rubber component is made of high-quality EPDM compound, which resists glycol-based brake fluid.
- 100% new: Built entirely from new materials, with a focus on quality and safety.
- Strict specifications: Made to meet rigorous SAE International standards.
Specifications: 1.125 in. bore diameter, two outlets, and a 1/2-20 secondary outlet thread. The reservoir is included. A sensor and mounting hardware are not included. Country of origin: China.
Signs this part may need replacing include a spongy or slowly sinking brake pedal, fluid leaking at the master cylinder, or a brake fluid level that keeps dropping. Other brake components can cause these symptoms too, so diagnose the system before replacing anything. If the master cylinder is the cause, the M39052 replaces it. Consult the vehicle service information for the correct fasteners, for whether they may be reused, and for the brake bleeding procedure.
Interchange: 174-512 · 783-36071 · 83-36071 · 100-2289 · M-82071 · 13-1749 · 10-1749 · 10-1749BLV · 130.62071 · 131.62071 · 355-47066
174512 · 78336071 · 8336071 · 1002289 · M82071 · 131749 · 101749 · 101749BLV · 13062071 · 13162071 · 35547066 · 18M91 · M900256 · 11749 · MC101264 · 18002064 · 18002069 · 18004253 · 18005307 · NM1749 · MC39052 · F101264
This part cross-references / interchanges with the following part numbers:
174-512, 18M91, 783-36071, 83-36071, M900256, 100-2289, M-82071, 11749, 13-1749, 10-1749, 10-1749BLV, 130.62071, 131.62071, MC101264, 355-47066, 18002064, 18002069, 18004253, 18005307, NM1749, MC39052, F101264
Frequently Asked Questions
Is this the right master cylinder for a 1977-1982 Chevrolet Corvette?
Dorman M39052 is listed for the 1977-1982 Chevrolet Corvette, all engines, with one master cylinder used per vehicle.
Does the M39052 come with a reservoir?
Yes, the reservoir is included. A sensor and mounting hardware are not included.
What are the bore size and outlet details?
It has a 1.125 in. bore diameter and two outlets, with a 1/2-20 secondary outlet thread.
What are the housing and rubber parts made of?
The cylinder housing is cast iron. All rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid.
What signs suggest my master cylinder may need replacing?
Possible signs include a spongy or sinking pedal, leaks at the master cylinder, or a dropping fluid level. Other brake parts can cause these too, so diagnose the system before replacing anything.
