Dorman - First Stop Brake Master Cylinder P/N:M630948

Keep hydraulic pressure flowing to the brake circuits with the Dorman - First Stop Brake Master Cylinder M630948. It drops in as a direct-fit replacement for the 2013-2016 Ford F-450 Super Duty and 2013-2016 Ford F-550 Super Duty (All), converting brake-pedal force into the hydraulic pressure that operates the vehicle's braking system.

• Cast iron housing: the cylinder housing is built to match the casting material of the original part for similar performance.
• EPDM rubber components: all rubber parts 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 install: single reservoir and sensor included, with three outlets and a 1.5 in bore diameter.

Rearward outlet size is M14x1.5 & M12x1.0 and the secondary outlet thread diameter is M12x1.5. Mounting hardware is not included — consult the vehicle service information for the correct fasteners and whether they may be reused. If a failed master cylinder is the cause of a sinking pedal or fluid loss, this unit replaces it. Country of origin: Taiwan.

Interchange: 100-3920
1003920 · DC3Z2140C · NM4306