Dorman M631017 brake master cylinder for the 2013-2014 Ford Fusion turns pedal force into hydraulic pressure for the brakes. This Dorman brake master cylinder replaces a unit that has worn out or started to leak.
- Dorman First Stop line
- Cast iron cylinder housing
- EPDM rubber components that resist glycol-based brake fluid
- Made entirely of new materials
- Made to meet SAE International standards
Quick facts
- Part: Dorman M631017 brake master cylinder
- Fits: 2013-2014 Ford Fusion
- Material: cast iron
- Condition: New
A brake pedal that sinks toward the floor, fluid seeping around the cylinder body or a brake warning light can mean the master cylinder is worn, though a leaking brake line or caliper can be behind the same signs, so find the cause before you replace it.
Fits
It fits the 2013-2014 Ford Fusion, which takes one master cylinder.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 0.875 in
- Number of outlets: 2
- Rearward outlet size: M12x1.5 and 3/8-24
- Secondary outlet thread diameter: M12x1.5
- Mounting holes: 2
Build and materials
- Material: cast iron
- Reservoir type: single
- Rubber components: EPDM
- Condition: new
- Country of origin: China
In the box
One brake master cylinder with its reservoir, cap and sensor. Mounting hardware, mounting bracket, bleeder hoses, push rod and brake booster are not included; plan on new mounting hardware, since the old pieces may not be reusable.
Interchange: 100-4519 · 130.61148
DG9Z2140B · NM4337 · MC391494 · MC146111
This part cross-references / interchanges with the following part numbers:
100-4519, 130.61148, DG9Z2140B, NM4337, MC391494, MC146111
Frequently Asked Questions
Does this Dorman M631017 fit as a 2013-2014 Ford Fusion master cylinder?
Yes. Dorman M631017 is a master cylinder for the 2013-2014 Ford Fusion, and each car takes one.
Does the Dorman master cylinder come with the reservoir and cap?
Yes. Dorman M631017 includes its reservoir, cap and sensor. The push rod, brake booster, bleeder hoses, mounting bracket and mounting hardware are not included.
What bore and outlet sizes does this brake master cylinder have?
This master cylinder has a 0.875 in bore and two outlets. The rearward outlet is M12x1.5 and 3/8-24, and the secondary outlet thread is M12x1.5.
What can I look for on a worn master cylinder with the engine off?
Look for brake fluid seeping around the cylinder body or a reservoir level that keeps dropping. A shop can test pressure and the rest of the brake system.
Are the rubber parts in this First Stop master cylinder made for brake fluid?
Yes. All rubber components are an EPDM compound that resists glycol-based brake fluid. The housing is cast iron.
