Dorman - First Stop Brake Master Cylinder M390258

Dorman - First Stop Brake Master Cylinder M390258 - view 2

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Dorman - First Stop Brake Master Cylinder P/N:M390258

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$111.99

MPN: M390258

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Dorman - First Stop Brake Master Cylinder P/N:M390258

$111.99

Description

Deliver firm, consistent brake-pedal response with the Dorman First Stop Brake Master Cylinder M390258, which converts pedal force into the hydraulic pressure that operates the brake circuits. It drops in as a direct-fit replacement for the 1994-1997 Dodge Ram 2500 and 1994-1997 Dodge Ram 3500 (all engines), precision-engineered to reproduce the design, function, and performance of the original master cylinder for these applications.

Aluminum housing: the cylinder housing is constructed to match the original part's casting material for similar performance.
EPDM rubber components: made of high-quality EPDM compound for resistance to glycol-based brake fluid.
100% new: built entirely from new materials, not remanufactured.
Built to spec: made to meet SAE International standards, with a 1.25 in bore, two outlets, and a 1/2-20 rearward outlet.

An integrated reservoir is included. A fluid-level sensor and mounting hardware are not included — consult the vehicle service information for the correct fasteners and whether they may be reused. If a failing master cylinder is the cause of a sinking pedal or uneven braking, this replaces it; diagnose the cause before replacing. Country of origin: China.

Interchange: 18M682 · 18M713 · M900897 · M900951 · 100-2609 · 1002609 · 12834 · 13057 · 13-2739 · 132739 · 10-2739 · 102739 · 130.66025 · 130.66031 · 131.66031 · 4746402 · 4778456 · MC251780 · MC252210 · 355-40048 · 35540048 · M2739 · NM2739 · MC390190 · MC390258 · F131471

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

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

18M682, 18M713, M900897, M900951, 100-2609, 12834, 13057, 13-2739, 10-2739, 130.66025, 130.66031, 131.66031, 4746402, 4778456, MC251780, MC252210, 355-40048, M2739, NM2739, MC390190, MC390258, F131471, MC131471

Frequently Asked Questions

What vehicles does this master cylinder fit?

It's a direct-fit replacement for the 1994-1997 Dodge Ram 2500 and 1994-1997 Dodge Ram 3500 (all engines). Check the Buyer's Guide tab to confirm your vehicle.

Does it come with a reservoir?

Yes, an integrated reservoir is included. A fluid-level sensor and mounting hardware are not included.

Is this a new or remanufactured part?

It's 100% new, built entirely from new materials rather than remanufactured, and made to meet SAE International standards.

What is the bore and outlet size?

The master cylinder has a 1.25 in bore, two outlets, and a 1/2-20 rearward outlet size.

What does a brake master cylinder do?

It converts brake-pedal force into hydraulic pressure that operates the brake circuits. If a failed master cylinder is causing a sinking pedal, this replaces it—diagnose the cause first.