Dorman M390398 brake master cylinder for the 1998-2005 Ford Explorer and other vehicles turns pedal force into hydraulic pressure for the brakes. This Dorman brake master cylinder is engineered to match the design and performance of the original.
- Part of the Dorman First Stop line
- Aluminum cylinder housing with a 1.063 in bore diameter
- All rubber components are EPDM compound, which resists glycol-based brake fluid
- Made entirely of new materials
- Made to meet SAE International standards
- Reservoir and sensor included with the cylinder
Quick facts
- Part: Dorman M390398 brake master cylinder
- Fits: 1998-2005 Ford Explorer and other vehicles
- Material: Aluminum
- Condition: New
A brake pedal that feels soft or sinks, brake fluid leaking around the cylinder or a brake warning light can mean the master cylinder is wearing out. Leaking calipers, a damaged brake hose, worn pads or air trapped in the lines can be behind a soft pedal too, so track down the cause before you buy. Have brake symptoms looked at promptly.
Fits
This brake master cylinder is a direct-fit replacement for the 1998-2005 Ford Explorer, the 2003-2004 Ford Escape and the 2001-2006 Ford Ranger. It is listed for a wide range of other Ford, Lincoln, Mazda and Mercury models as well. A 1998-2005 Ford Explorer takes one. If your vehicle is not named here, look up its year, model and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 1.063 in
- Number of outlets: 4
- Rearward outlet size: M12 x 1.0 and M10 x 1.0
- Secondary outlet thread diameter: M10 x 1.0 & 3/8-24
Build and materials
- Material: Aluminum
- Rubber components: EPDM compound
- Reservoir: included
- Sensor: included
- Condition: New
- Country of origin: Taiwan
In the box
One brake master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new fasteners; the old ones may not be reusable.
Frequently Asked Questions
Is this the right brake master cylinder for a 2001-2006 Ford Ranger?
Yes. Dorman M390398 is listed for the 2001-2006 Ford Ranger, which takes one. Owners of other models can look up their year in the "Vehicles it fits" section.
Will this master cylinder work in a 1998-2005 Ford Explorer?
Yes. This cylinder is listed for the 1998-2005 Ford Explorer, and that vehicle takes one.
What comes with this Dorman master cylinder?
The listing is one master cylinder with its reservoir and sensor. Mounting hardware is not included.
Can this master cylinder be used with glycol-based brake fluid?
Yes. All the rubber components in this master cylinder are made of EPDM compound, which resists glycol-based brake fluid.
What outlet thread sizes does the Dorman M390398 have?
Dorman M390398 has four outlets. The rearward outlet size is M12 x 1.0 and M10 x 1.0, and the secondary outlet thread is M10 x 1.0 & 3/8-24.
