Dorman - First Stop Brake Master Cylinder P/N:M630525
Dorman M39850 brake master cylinder for the 1990-1997 Subaru Legacy and other vehicles turns pedal force into hydraulic pressure for the brakes. It is made entirely of new materials, with a housing constructed to match the casting material of the original master cylinder and engineered to follow its design and function.
A soft or sinking pedal, brake fluid around the cylinder or a brake warning light can mean the master cylinder is worn. Those signs can have other causes, so with the engine off, look over the cylinder body and the brake line fittings for wet fluid and read the reservoir level before you replace anything.
This is a brake master cylinder for the 1990-1997 Subaru Legacy and the 1992-1997 Subaru SVX. A car takes one, and this listing is a single unit.
Fit and size
Build and materials
One brake master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new hardware, since the old pieces may not be reusable.
Does the Dorman M39850 also fit the 1992-1997 Subaru SVX?
Yes. Dorman M39850 fits the 1992-1997 Subaru SVX as well as the 1990-1997 Subaru Legacy.
Does the Dorman master cylinder come with a reservoir?
Yes. Dorman M39850 comes with its reservoir and a sensor. Mounting hardware is not included.
What bore size does this Dorman brake master cylinder have?
The bore diameter is 1.063 in. This master cylinder has two outlets, both with M10 x 1.0 threads.
What are the rubber parts in this brake master cylinder made of?
The rubber parts are EPDM, which resists glycol-based brake fluid, and the cylinder housing is aluminum.
Is this brake master cylinder made to SAE standards?
Yes. Dorman M39850 is made to meet rigorous SAE International standards. Its country of origin is Taiwan.
No reviews yet — be the first to review this product.
Write a Review
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.