Dorman - First Stop Brake Master Cylinder P/N:M39435

Convert brake-pedal force into the hydraulic pressure that operates the braking system with the Dorman First Stop Brake Master Cylinder M39435. It drops in as a direct-fit replacement for the listed applications, including the 1981-1996 Chevrolet P30, 1981-1986 Chevrolet C30 and 1983-1986 Chevrolet K30, plus the 1981-1996 GMC P3500 and 1981-1986 GMC C3500 (All engines) — see the Buyer's Guide tab for the full list of covered Chevrolet and GMC C/K/P/R/V models.

This unit is engineered to match the design, function, and performance of the original master cylinder on the specific years, makes, and models it covers. The housing is a cast-iron casting matched to the original part's casting material, it has two outlets with a 1.313 in bore and a 1/2-20 rearward outlet, and the fluid reservoir is included. Mounting hardware and a fluid-level sensor are not included; consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.

• 100% new: built entirely from new materials, never remanufactured.
• Cast-iron housing: matched to the casting material of the original part for similar performance.
• EPDM rubber components: resist glycol-based brake fluid.
• SAE International standards: made to meet these rigorous specifications.

Interchange: 174-838 · 174838 · 18M230 · 783-44012 · 78344012 · 83-44012 · 8344012 · M900430 · 100-2589 · 1002589 · M-86012 · M86012 · 11982 · 13-1982 · 131982 · 10-1982 · 101982 · 130.66012 · 131.66012 · MC108145 · 355-47145 · 35547145 · 14066425 · 108145 · M1982 · NM1982 · 2539435 · MC39435 · F108145. Manufacturer part number M39435.