Turn pedal effort into hydraulic braking pressure with the Dorman First Stop Brake Master Cylinder, part number M39528. It is a new, cast-iron replacement that fits many vehicles, among them the 1988-1990 Chevrolet P60, the 1983-1991 Chevrolet B60 and the 1986-1991 GMC B6000; see the Buyer's Guide tab for the full list. This master cylinder is engineered to match the original unit's design, function and performance on the listed applications. It is constructed from new, high-quality materials to provide a safe, durable replacement.
- Matched housing: The cast-iron cylinder housing is made to match the original part's casting material for similar performance.
- Brake-fluid-resistant rubber: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: Constructed entirely from new materials for quality and safety.
- Strict specifications: Manufactured to the rigorous standards of SAE International.
Specifications: 1.75 in bore; 2 outlets; 1/2-20 secondary outlet thread; reservoir included; sensor not included; mounting hardware not included. Country of origin: China.
Signs a master cylinder may need replacing include a soft or sinking pedal, fluid seeping at the cylinder, or a falling reservoir level. Other brake faults can cause the same symptoms, so diagnose the cause first. Consult the vehicle service information for the correct mounting fasteners and whether the originals may be reused.
Interchange: 174-866 · 83-58002 · 100-2787 · M-92002 · 13-8001 · 10-8001 · 130.80016 · 130.82002 · 355-47214 · 355-47217
174866 · 8358002 · 1002787 · M92002 · 138001 · 108001 · 13080016 · 13082002 · 35547214 · 35547217 · 18M284 · M900490 · 11993 · MC252730 · 15500481 · 15601554 · 116702 · M8001 · MC39528 · F108144 · F116702 · MC108144 · MC116702
This part cross-references / interchanges with the following part numbers:
174-866, 18M284, 83-58002, M900490, 100-2787, M-92002, 11993, 13-8001, 10-8001, 130.80016, 130.82002, MC252730, 355-47214, 355-47217, 15500481, 15601554, 116702, M8001, MC39528, F108144, F116702, MC108144, MC116702
