Dorman - First Stop Brake Master Cylinder M104456

Dorman - First Stop Brake Master Cylinder M104456 - view 2

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Dorman - First Stop Brake Master Cylinder P/N:M104456

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$60.99

MPN: M104456

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Dorman - First Stop Brake Master Cylinder P/N:M104456

$60.99

Description

Generate the hydraulic pressure that operates your entire brake system with the Dorman - First Stop Brake Master Cylinder M104456. This master cylinder converts brake-pedal force into hydraulic pressure and sends brake fluid through its outlets to the brake circuits. It drops in as a direct-fit replacement for a wide range of 1978-1995 GM cars and trucks — including the 1981-1985 Buick Electra, 1981-1986 Chevrolet C10, 1982-1986 Chevrolet K5 Blazer, 1983-1995 Chevrolet G20, 1982-1986 GMC K1500, 1981-1985 Oldsmobile Delta 88 and 1983-1985 Pontiac Parisienne (engine: All). See the Buyer's Guide tab for the full list of applications.

It is precision-engineered to match the design, function and performance of the original master cylinder on the listed years, makes and models.

Precise replacement: the cast-iron cylinder housing is constructed to match the casting material of the original part for similar performance.
Durable design: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
100% new: built entirely from new materials — not remanufactured.
Built to standard: made to meet rigorous SAE International standards.

The bore measures 30.04 mm, the housing has two outlets, and the secondary outlet thread diameter is 1/2-20. The reservoir is included; no sensor and no mounting hardware are supplied, so consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.

Interchange: 174-837 · 174837 · 18M160 · 783-36040 · 78336040 · 83-36040 · 8336040 · M900358 · 100-2252 · 1002252 · M-82040 · M82040 · 11863 · 13-1863 · 131863 · 10-1863 · 101863 · 130.62040 · 131.62040 · MC104456 · 355-47049 · 35547049 · 14047683 · 25509416 · M1863 · NM1863 · 2539308 · MC39308 · F104456. Manufacturer part number M104456.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

174-837, 18M160, 783-36040, 83-36040, M900358, 100-2252, M-82040, 11863, 13-1863, 10-1863, 130.62040, 131.62040, MC104456, 355-47049, 14047683, 25509416, M1863, NM1863, 2539308, MC39308, F104456

Frequently Asked Questions

What does this brake master cylinder do?

It converts the force from your brake pedal into hydraulic pressure, pushing brake fluid through its outlets to operate the vehicle's brake circuits.

Does it include a reservoir, sensor, or mounting hardware?

The reservoir is included. A sensor is not included and mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused.

What are the bore and outlet specs?

The bore diameter is 30.04 mm and the housing has two outlets, with a secondary outlet thread diameter of 1/2-20. It is cast iron with EPDM rubber components.

What are signs this master cylinder may need replacing?

A pedal that slowly sinks under steady pressure or feels spongy can be a sign. If a failed master cylinder is the cause, this unit replaces it, but diagnose the system first as other parts can cause the same symptoms.

Which vehicles does the M104456 fit?

It's a direct-fit replacement for many 1978-1995 GM cars and trucks, such as the Buick Electra, Chevrolet C10, GMC K1500 and Pontiac Parisienne. Check the Buyer's Guide tab for the complete application list.