HomeBrake > Brake HydraulicsMPA Electrical NM1861 Brake Master Cylinder
Part #: NM1861

MPA Electrical NM1861 Brake Master Cylinder

New with front disc brakes
4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
New with front disc brakes
Fitment: Ford, F-250
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Brake Master Cylinder for Ford F-250

Restore consistent brake pedal response with this new brake master cylinder from MPA Electrical. Built for 1980-1983 Ford F-250 trucks with front disc brakes, part number NM1861 is a standard replacement that matches OE-style specifications for dependable hydraulic performance.

Key Features

  • Fits 1980-1983 Ford F-250, N/A, with front disc brakes
  • Brake master cylinder with integral reservoir and included cap
  • Cast iron master cylinder body for durable service
  • 1.063-inch bore diameter for the listed application
  • Uses DOT 3 brake fluid
  • New condition, standard replacement grade
  • Two mounting holes with 0.4-inch mounting hole diameter

Product Details

MPA Electrical NM1861 is engineered as a brake master cylinder replacement for Ford F-250 trucks in the 1980-1983 range. The unit is tested against OE specifications using controlled processes and sample-based validation to help deliver consistent hydraulic performance after installation. The integral reservoir, cast iron construction, and included cap support a direct-service replacement for the original brake hydraulic component on front disc brake applications.

This part number, NM1861, is a practical choice for Ford F-250 owners addressing worn or leaking master cylinder components. It is also identified by part number NM1861 for cataloging and service lookup.

Common Problems It Can Help Address

  • Low or inconsistent brake pedal feel
  • Brake fluid leakage from the master cylinder body
  • Internal hydraulic bypass causing pedal drop
  • Reduced braking response in front disc brake systems
  • Brake warning symptoms tied to master cylinder wear

Installation Notes and Tips

Verify the vehicle is a 1980-1983 Ford F-250 with front disc brakes before ordering. This master cylinder does not include a brake booster, push rod, mounting hardware, dust boot, gasket or seal, sensor, mounting bracket, or brake pressure switch. Bench bleeding the master cylinder before installation helps remove trapped air and supports proper pedal feel after the brake system is reassembled.

Quality Assurance

MPA Electrical brake master cylinders are checked against OE specifications using proprietary testing procedures and strict inspection protocols. That process is intended to support consistent braking performance right out of the box for the listed Ford F-250 application.

BrandMPA Electrical
Part NumberNM1861
PositionNew with front disc brakes
Reservoir MaterialIntegral
Dust Boot IncludedNo
Mounting Hardware IncludedNo
Grade TypeStandard replacement
Gasket Or Seal IncludedNo
Mounting Hole Quantity2
Master Cylinder Bore Diameter1.063
Brake Booster IncludedNo
Master Cylinder Cap IncludedYes
Master Cylinder MaterialCast iron
Push Rod IncludedNo
Reservoir IncludedYes
Sensor IncludedNo
Mounting Hole Diameter0.4
Mounting Bracket IncludedNo
Brake Pressure Switch(s) IncludedNo
Fluid TypeDot 3
Product ConditionNew

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
1983FordF-250N/ANew with front disc brakes
1982FordF-250N/ANew with front disc brakes
1981FordF-250N/ANew with front disc brakes
1980FordF-250N/ANew with front disc brakes

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