Dorman - First Stop Brake Master Cylinder P/N:M390337

Convert brake-pedal force into the hydraulic pressure that operates the braking system with the Dorman - First Stop Brake Master Cylinder (M390337). It's precision-engineered to match the design, function, and performance of the original master cylinder on the listed applications, dropping in on the 1997-2001 Ford Expedition, 1999-2002 Ford F-150, 1996-1999 Ford F-250, 1997 Ford F-250 HD, 1996-1997 Ford F-350, 2001-2002 Ford Lobo, 2002 Lincoln Blackwood, and 1998-2001 Lincoln Navigator (engine: All).

• Aluminum construction: the housing is built to match the casting material of the original part for similar performance.
• Durable rubber: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
• 100% new: made entirely of new materials, not remanufactured, and built to meet rigorous SAE International standards.
• Ready to fit: includes a reservoir and sensor; features a 1.25 in bore with 3 outlets (rearward outlet M18 x 1.5, secondary outlet threads 9/16-18 & 3/8-24).

Mounting hardware is not included; consult the vehicle service information for the correct fasteners and whether they may be reused. A brake pedal that slowly sinks under steady foot pressure, feels spongy, or a fluid leak at the master cylinder can be signs this part may need replacing — diagnose the cause before replacing. Country of origin: China.

Interchange: 18M762 · M901010 · 100-2506 · 1002506 · 13249 · 13-2828 · 132828 · 10-2828 · 102828 · 130.65054 · 130.65083 · 131.65083 · MC250810 · 355-54173 · 35554173 · 355-54199 · 35554199 · F6TZ2140BA · F75Z2140KA · XL3Z2140HA · XL3Z2140HB · YL1Z2140AA · YL1Z2140AC · M3033 · NM3033 · NM4038 · NM4039 · MC390337 · F131993 · MC131993. Manufacturer part number M390337.