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Dorman - First Stop Brake Master Cylinder P/N:M390259
$62.99
Convert brake-pedal force into the hydraulic pressure that operates the brake system with the Dorman - First Stop Brake Master Cylinder (M390259). It installs as a direct-fit replacement across a wide range of 1994-2000 GM full-size trucks and SUVs — including the 1994-1999 Chevrolet C1500 and K1500, 1994-2000 Chevrolet/GMC C2500 and K2500, 1995-2000 Chevrolet Tahoe, 1999-2000 Cadillac Escalade, 1994-2000 GMC Yukon, and 1995-1996 Dodge Ram 1500 — with 21 applications in all (engine: All). See the Buyer's Guide tab for the full list.
- 100% new, never remanufactured: built entirely from new materials to help ensure quality and safety.
- Aluminum housing: the cylinder housing is constructed to match the casting material of the original part for similar performance.
- Glycol-resistant seals: the rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- Dual outlets: two outlets with a 1/2-20 rearward outlet and a 1.125 in bore; the fluid reservoir is included.
Made to meet SAE International standards. Mounting hardware is not included and no sensor is included — consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Interchange: 174-723 · 174723 · 18M1492 · 18M714 · 783-44029 · 78344029 · 83-44029 · 8344029 · M900952 · 100-2614 · 1002614 · M-86029 · M86029 · 13055 · 13-2352 · 132352 · 10-2352 · 102352 · 130.66029 · 131.66029 · 4778450 · MC131468 · MC250120 · 355-47158 · 35547158 · 18021273 · 18029967 · M3034 · NM3034 · MC390259 · F131468. Manufacturer part number M390259.
This part cross-references / interchanges with the following part numbers:
174-723, 18M1492, 18M714, 783-44029, 83-44029, M900952, 100-2614, M-86029, 13055, 13-2352, 10-2352, 130.66029, 131.66029, 4778450, MC131468, MC250120, 355-47158, 18021273, 18029967, M3034, NM3034, MC390259, F131468
Frequently Asked Questions
What does this brake master cylinder do?
It converts the force from your brake pedal into the hydraulic pressure that operates the brake system. It has two outlets to feed the brake circuits, and the fluid reservoir is included.
Which vehicles does the M390259 fit?
Direct-fit replacement across 21 applications, including the 1994-1999 Chevy/GMC C1500 and K1500, 1995-2000 Tahoe, and 1995-1996 Dodge Ram 1500. See the Buyer's Guide tab for the full list.
Is the reservoir or mounting hardware included?
The fluid reservoir is included. Mounting hardware and a sensor are not included; consult your vehicle service information for the correct fasteners and whether they may be reused.
Is this a remanufactured unit?
No. It is 100% new, built entirely from new materials rather than remanufactured, and made to meet SAE International standards.
What are signs my master cylinder may need replacing?
A spongy or slowly sinking brake pedal, loss of hydraulic pressure, or brake fluid leaking from the unit can be signs. Have the cause diagnosed, since these symptoms can have other causes.
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Dorman - First Stop Brake Master Cylinder P/N:M390259
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