Replace a worn or leaking master cylinder with the Dorman First Stop Brake Master Cylinder M39646, which converts brake pedal force into the hydraulic pressure that applies your brakes. It fits many vehicles, among them the 1994 Dodge Ram 1500, 1988-1993 Chevrolet C1500 and 1988-1993 Chevrolet K1500, as a direct-fit replacement for the listed applications. Dorman engineered it to mirror the original master cylinder's design, function and performance, and built it from new, high-quality materials for a safe, durable replacement.
- Precise replacement: The cylinder housing is built to match the casting material of the original part and is intended to deliver similar performance.
- Durable design: Every rubber component uses a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: Made entirely of new materials for quality and safety.
- Strict specifications: Made to meet rigorous SAE International standards.
If a leaking or internally worn master cylinder is behind a soft or sinking brake pedal, this unit replaces it. Diagnose the brake system first, because other components can cause similar symptoms. After installation, bleed the brakes following the vehicle's service procedure. Whether you need a master cylinder for the 1994 Dodge Ram 1500 or for a listed Chevrolet or GMC vehicle, see the Buyer's Guide tab for the full list of applications.
Interchange: 174-668 · 783-44021 · 83-44021 · M-86021 · 13-2352 · 10-2352 · 130.66021 · 131.66021 · 355-47152
18M1746 · 18M361 · M900567 · 12219 · 4746392 · MC116881 · 18013977 · 18060086 · NM2219 · MC39646 · F116881 · 174668 · 78344021 · 8344021 · M86021 · 132352 · 102352 · 13066021 · 13166021 · 35547152
This part cross-references / interchanges with the following part numbers:
174-668, 18M1746, 18M361, 783-44021, 83-44021, M900567, M-86021, 12219, 13-2352, 10-2352, 130.66021, 131.66021, 4746392, MC116881, 355-47152, 18013977, 18060086, NM2219, MC39646, F116881
