Dorman M630921 brake master cylinder for the 2014-2019 Nissan Sentra turns pedal force into hydraulic pressure for the brakes. Its two outlets carry that pressure on to the brake lines.
- Cylinder housing built to match the casting material of the original part
- All rubber components made of EPDM compound for resistance to glycol-based brake fluid
- Made entirely of new materials
- Made to meet rigorous SAE International standards
Quick facts
- Part: Dorman M630921 brake master cylinder
- Fits: 2014-2019 Nissan Sentra
- Material: Cast iron
- Condition: New
A brake pedal that feels soft or sinks slowly, or fluid leaking around the cylinder, can mean a worn master cylinder. These signs alone do not prove it is the problem, since a leaking brake line can give the same soft pedal.
Fits
This brake master cylinder is a direct-fit replacement for the 2014-2019 Nissan Sentra, which takes one.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 0.9375 in
- Number of outlets: 2
- Outlet thread: M12 x 1.0, 1 mm pitch
Build and materials
- Reservoir type: single, included
- Sensor: included
- Material: cast iron
- Rubber components: EPDM compound
- 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.
Interchange: 100-4096 · 130.42225 · 355-67031
460103SG0B · MC391477
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
100-4096, 130.42225, 355-67031, 460103SG0B, MC391477
Frequently Asked Questions
Is this the right master cylinder for the 2014-2019 Nissan Sentra?
Yes. Dorman M630921 is a direct-fit brake master cylinder for the 2014-2019 Nissan Sentra, and that car takes one.
Does the Dorman M630921 come with its reservoir, and are bolts included?
Yes, Dorman M630921 comes with a reservoir and sensor. Mounting hardware is not included.
What are the bore size and outlet thread on this master cylinder?
The bore diameter is 0.9375 inch. The two outlets use an M12 x 1.0 thread with a 1 mm pitch.
What brake fluid is the rubber in this master cylinder made to resist?
All rubber components are an EPDM compound made for resistance to glycol-based brake fluid.
What signs can point to a worn Dorman M630921 master cylinder?
A pedal that feels soft or slowly sinks, or fluid seen leaking at the cylinder, can point to it. Brakes are a safety matter, so have the car inspected promptly.
