HomeBrake > Brake HydraulicsDorman M630518 Brake Master Cylinder
Part #: M630518

Dorman M630518 Brake Master Cylinder

⚙️ 9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-250, F-250 Super Duty, F-350, and F-350 Super Duty
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Reliable Brake Master Cylinder for Ford F-250 and F-350 Super Duty

The Dorman M630518 brake master cylinder is engineered to restore proper brake hydraulics in Ford F-250, F-250 Super Duty, F-350, and F-350 Super Duty trucks. Designed with precision, this aluminum master cylinder includes a reservoir and sensor to ensure consistent brake performance.

Key Features of the Dorman M630518 Brake Master Cylinder

  • Master cylinder bore diameter of 1.5 inches for optimal hydraulic pressure
  • Constructed from durable aluminum material for corrosion resistance
  • Includes an integrated reservoir for brake fluid storage
  • Equipped with a sensor to monitor brake system status
  • Three outlets with specific thread sizes: rearward outlet M12 x 1.0, secondary outlet M10 x 1.0 and 3/8-24
  • Package contains the master cylinder unit only

Detailed Description

The Dorman M630518 brake master cylinder is designed specifically for Ford F-250 and F-350 Super Duty models, providing a direct replacement for the original component. Its 1.5-inch bore diameter ensures proper hydraulic pressure is maintained throughout the brake system. Manufactured from aluminum, this master cylinder offers enhanced durability and resistance to corrosion, which is critical for long-term brake system reliability. The included reservoir allows for efficient brake fluid management, while the integrated sensor provides real-time monitoring of brake system conditions. The three outlet ports with precise thread sizes facilitate secure connections to the brake lines, ensuring leak-free operation.

Common Applications and Issues Addressed

  • Restores brake hydraulic pressure in Ford F-250 and F-350 Super Duty trucks
  • Replaces master cylinders with worn or damaged bores causing brake failure
  • Solves brake fluid leaks due to cracked or corroded reservoirs
  • Addresses sensor malfunctions affecting brake warning lights
  • Fixes improper brake line connections with correct outlet thread sizes

Installation Notes and Tips

  • Compatible with Ford F-250, F-250 Super Duty, F-350, and F-350 Super Duty models
  • Ensure brake fluid is properly bled after installation to avoid air in the system
  • Verify outlet thread sizes (M12 x 1.0, M10 x 1.0, 3/8-24) match brake line fittings
  • Check sensor connections for secure fit to maintain brake system monitoring

Quality Assurance and Warranty

Dorman manufactures the M630518 brake master cylinder to meet or exceed OEM specifications for Ford F-250 and F-350 Super Duty trucks. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.

BrandDorman
Part NumberM630518
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter1.5
Master Cylinder MaterialAluminum
Reservoir IncludedYes
Sensor IncludedYes
Number of Outlets3
Package ContentsMaster cylinder
Rearward Outlet SizeM12 x 1.0
Secondary Outlet Thread DiameterM10 x 1.0 & 3/8-24

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
2010FordF-250 Super DutyN/AFitment: wo/Brake Control Valve, w/Hydro-Boost
2010FordF-350 Super DutyN/AFitment: wo/Brake Control Valve, w/Hydro-Boost
2009FordF-250N/AFitment: wo/Brake Control Valve, w/Hydro-Boost
2009FordF-250 Super DutyN/AFitment: wo/Brake Control Valve, w/Hydro-Boost
2009FordF-350N/AFitment: wo/Brake Control Valve, w/Hydro-Boost
2009FordF-350 Super DutyN/AFitment: wo/Brake Control Valve, w/Hydro-Boost
2008FordF-250 Super DutyN/Awo/Brake Control Valve
2007FordF-250 Super DutyN/AFrom 12/18/06; wo/Brake Control Valve; w/Hydraulic Brakes; Bore: 1.50 In.
2007FordF-350 Super DutyN/AFrom 12/18/06; wo/Brake Control Valve; w/Hydraulic Brakes; Bore: 1.50 In.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

10-348113-3481130.651117C3Z2140FF142429MC391200NM4160

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.