Send hydraulic pressure to the brakes each time you press the pedal with the Dorman First Stop Brake Master Cylinder M71259. It is a direct-fit replacement for many Dodge models (all engines), among them the 1975-1977 Dodge W300, 1969-1974 Dodge P300 Van and 1968-1974 Dodge W200 Pickup; see the "Vehicles it fits" section for the full list.
Dorman precision-engineers this master cylinder to match the design, function and performance of the original unit on the listed applications. It is built from all-new, high-quality materials for a safe, durable replacement.
- Precise replacement: the cast iron cylinder housing is built to match the casting material of the original part for similar performance.
- Durable design: every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: made entirely from new materials for quality and safety.
- Strict specifications: built to meet rigorous SAE International standards.
Specifications: 1.125 in bore diameter; 2 outlets; 1/2-20 secondary outlet thread; reservoir included; sensor not included; mounting hardware not included. Country of origin: Taiwan. The package contains one master cylinder.
A soft or slowly sinking brake pedal, or fluid leaking at the master cylinder, may be a sign that this part needs replacing. Other brake faults can cause similar symptoms, so diagnose the cause before replacing. Consult the vehicle service information for the correct fasteners and bleeding procedure.
Interchange: 83-40001 · 100-2653 · M-87001 · 13-1405 · 10-1405 · 130.67001 · 355-40050
8340001 · 1002653 · M87001 · 131405 · 101405 · 13067001 · 35540050 · 18M15 · M900106 · 11405 · 2830251 · 2952130 · 3549832 · MC512070 · 5471528 · 5471529 · 71259 · NM1405 · MC36258 · F71259 · MC71259
This part cross-references / interchanges with the following part numbers:
18M15, 83-40001, M900106, 100-2653, M-87001, 11405, 13-1405, 10-1405, 130.67001, 2830251, 2952130, 3549832, MC512070, 355-40050, 5471528, 5471529, 71259, NM1405, MC36258, F71259, MC71259
Frequently Asked Questions
Does the Dorman M71259 come with a reservoir?
Yes, the reservoir is included. A sensor and mounting hardware are not included.
What are the key specifications of this master cylinder?
It has a 1.125 in bore diameter, 2 outlets and a 1/2-20 secondary outlet thread. The housing is cast iron.
What brake fluid are the rubber components designed for?
All rubber components use a high-quality EPDM compound that resists glycol-based brake fluid. Use the fluid type your vehicle's service information specifies.
What are signs a master cylinder may need replacing?
A soft or sinking brake pedal, or fluid leaking at the master cylinder, may be a sign it needs replacing. Other brake faults can cause similar symptoms, so diagnose the cause first.
Which vehicles does the M71259 fit?
It fits many Dodge models with all engines, including the 1968-1974 Dodge W200 Pickup and the 1969-1974 Dodge P300 Van. See the "Vehicles it fits" section for the full list.
