Brakes› Master Cylinders-Boosters and Components

Dorman

NEW MASTER CYLINDER

$250.14

SKU: D00I M630709

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Dorman M630709 is a brake master cylinder designed for specific Nissan Sentra models. It is constructed to match the original part's casting material and ensures similar performance. The rubber components are made from EPDM compound for resistance to brake fluid, and all parts are new, not remanufactured.

This master cylinder meets rigorous SAE International standards. It features a 0.938-inch bore diameter and is made of aluminum. The unit includes a reservoir and a sensor, but mounting hardware is not included. It has two outlets: a primary outlet with a 1 mm thread pitch and a secondary/rearward outlet with an M12 x 1.0 size.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDorman
Part NumberD00I M630709

Videos

Dorman Speed Bleeder Review and How to Install Tips!

Dorman Speed Bleeder Review and How to Install Tips!
How to replace a master cylinder without bleeding the system… Works on anything/ Chevy Equinox

How to replace a master cylinder without bleeding the system… Works on anything/ Chevy Equinox
Master Cylinder Bleeding Quick and Easy!

Master Cylinder Bleeding Quick and Easy!
Installing my Honed Developments brake booster delete kit on my Integra!

Installing my Honed Developments brake booster delete kit on my Integra!
New front hub and bearing assembly for my 350z drift/track build from Dorman Products!

New front hub and bearing assembly for my 350z drift/track build from Dorman Products!
How to Fix a spongey Brake Pedal After You've Replaced your Brakes!

How to Fix a spongey Brake Pedal After You've Replaced your Brakes!
AC Compressor Bypass For Less Than $50.

AC Compressor Bypass For Less Than $50.
Checking and adjusting the parking brake | Easy DIY car and truck maintenance

Checking and adjusting the parking brake | Easy DIY car and truck maintenance
Motive Products - Brake bleeder on a Nissan Hardbody - D21

Motive Products - Brake bleeder on a Nissan Hardbody - D21
Catalytic converter nut removal tips.

Catalytic converter nut removal tips.

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy