[Vehicle Fitment]: Compatible with Ford F-250 1980 (with Power Brakes, Dual Piston Caliper), Compatible with F-250 1981-1983 (Under 8,500 lb. GVW, Dual Piston Caliper)
[Reference Number]: The A-Premium Brake Master Cylinder's reference number: M39172. Before placing an order, verify that the part is compatible with your vehicle using the compatibility system.
[Function]: Pressure tested to ensure safe and reliable braking; Excellent materials and precision manufacturing to give sufficient pressure and extend lifespan.
[Specification]: Material: Aluminum; Primary Port Thread A: 1/2"-20; Secondary Port Thread A: 9/16"-18; Reservoir Included: Yes; Sensor Included: No
[Customer Support]: 1 Year Unlimited-mileage Quality Guarantee; Being brand-new and sturdy, this Brake Master Cylinder Assembly is the ideal choice for direct replacement. We extremely value your satisfaction and strive to provide you good shopping experience. Any further question, please feel free to contact us at any time.