Keep pedal force turning into hydraulic braking pressure with the Dorman First Stop Brake Master Cylinder M39876. It's a direct-fit replacement for the 1988-1997 Ford F-Super Duty, 1989-1997 Ford F-53 Motorhome Chassis, 1989-1996 Ford F-59 Commercial Stripped Chassis and 1994-1997 Ford F-350 (All engines). It is precision-engineered to match the original master cylinder's design, function and performance, and it is built from new, high-quality materials for a safe, durable replacement.
- Precise replacement: the aluminum cylinder housing is constructed 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 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: 1.313 in. bore diameter · 2 outlets · 7/16-24 secondary outlet thread · reservoir included · sensor included · mounting hardware not included. The package contains one master cylinder, and each listed application uses one. Country of origin: China.
A soft or sinking brake pedal, fluid leaking at the master cylinder, or a steadily dropping reservoir level are signs a master cylinder may need replacing. These symptoms can have other causes, so diagnose the brake system before you replace any parts. Mounting hardware is not supplied, so consult the vehicle service information for the correct fasteners and whether they may be reused.
Interchange: 783-42034 · 83-42034 · 83-42064 · 100-2477 · M-85034 · M-85064 · 13-4015 · 10-4015 · 130.65034 · 131.65034 · 355-54154 · BRMC-40
78342034 · 8342034 · 8342064 · 1002477 · M85034 · M85064 · 134015 · 104015 · 13065034 · 13165034 · 35554154 · BRMC40 · 18M484 · M900691 · 12357 · MC250140 · E8TZ2140A · F4TZ2140D · M4015 · NM4015 · MC39876 · F116811 · MC116811
This part cross-references / interchanges with the following part numbers:
18M484, 783-42034, 83-42034, 83-42064, M900691, 100-2477, M-85034, M-85064, 12357, 13-4015, 10-4015, 130.65034, 131.65034, MC250140, 355-54154, E8TZ2140A, F4TZ2140D, M4015, NM4015, BRMC-40, MC39876, F116811, MC116811
