Dorman M630913 brake master cylinder for the 2013-2021 Buick Encore and other vehicles turns pedal force into hydraulic pressure for the brakes. Its two outlets carry that pressure on to the brake lines.
- Dorman First Stop line brake master cylinder
- Cast iron cylinder housing
- All rubber components are EPDM compound, resistant to glycol-based brake fluid
- Made entirely of new materials
- Built to meet SAE International standards
Quick facts
- Part: Dorman M630913 brake master cylinder
- Fits: 2013-2021 Buick Encore and other vehicles
- Material: Cast iron
- Condition: New
A soft or sinking brake pedal, fluid around the cylinder or a brake warning light can mean the master cylinder is worn, though a leaking brake hose or a sticking caliper can be behind them too, so find the cause before you replace it. This listing is one master cylinder, which is all these vehicles take.
Fits
It fits the 2013-2021 Buick Encore, the 2012-2020 Chevrolet Sonic and the 2014-2015 and 2018-2020 Chevrolet Trax.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 0.9375 in
- Number of outlets: 2
- Rearward outlet size: M12 x 1.0
- Secondary outlet thread diameter: M12 x 1.0
- Primary outlet thread pitch: 1 mm
Build and materials
- Material: Cast iron
- Rubber components: EPDM compound
- Condition: New
- Country of origin: China
In the box
One master cylinder. The reservoir, mounting hardware and a sensor are not included, so plan on new fasteners.
Interchange: 174-1265 · 100-4031 · 10-4519 · 130.62177 · 355-47122
95229905 · 95390404 · 95414483 · NM4287 · MC391526 · MC391548
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
174-1265, 100-4031, 10-4519, 130.62177, 355-47122, 95229905, 95390404, 95414483, NM4287, MC391526, MC391548
Frequently Asked Questions
Does the Dorman M630913 brake master cylinder fit the 2012-2020 Chevrolet Sonic?
Yes. Dorman M630913 is listed for the 2012-2020 Chevrolet Sonic.
Does this cast iron master cylinder come with a reservoir or mounting hardware?
No, the box holds only the master cylinder; the reservoir, mounting hardware and a sensor are not included, so plan on new fasteners.
What size are the outlet threads on the Dorman M630913?
The rearward outlet and the secondary outlet are both M12 x 1.0, and the primary outlet thread pitch is 1 mm. The bore is 0.9375 in.
My brake pedal feels soft and slowly sinks; could the master cylinder be worn?
Yes, a pedal that sinks or fluid around the cylinder can mean a worn master cylinder. Brakes are a safety system, so have them checked by a shop promptly rather than driving on them.
Are the rubber parts in this master cylinder made for glycol-based brake fluid?
Yes. All rubber components are made of an EPDM compound that resists glycol-based brake fluid, and the housing is cast iron.
