Dorman - First Stop Brake Master Cylinder P/N:M630794
Convert pedal effort into the hydraulic pressure your brakes depend on with the Dorman First Stop Brake Master Cylinder M390030, a new Toyota Tercel master cylinder built as a direct-fit replacement for the 1991-1994 Toyota Tercel and the 1995 Toyota Paseo, all engines. Dorman precision-engineered it to match the original unit's design, function and performance. It is made from new, high-quality materials for a safe, durable replacement.
Specifications: bore diameter of 0.813 in. It has two outlets, with M10 x 1.0 threads on the rearward and secondary outlets. The reservoir and sensor are included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners. Country of origin: Taiwan.
A soft or sinking brake pedal, fluid seeping around the master cylinder, or a reservoir level that keeps dropping are signs this part may need replacing. Other brake faults can cause similar symptoms, so diagnose the cause before replacing. Bench bleed the unit and bleed the brake system as directed by the service procedure.
Interchange: 83-22603 · 100-1635 · M-56603 · 072-8993 · 13-2602 · 11-2602 · 130.44603 · 355-76110
8322603 · 1001635 · M56603 · 0728993 · 132602 · 112602 · 13044603 · 35576110 · 18M566 · M900774 · 12699 · MC252460 · M55032 · NM55032 · MC390030 · 4720116200 · F122258 · F140284 · MC122258 · MC140284
This part cross-references / interchanges with the following part numbers:
Which vehicles does the Dorman M390030 master cylinder fit?
It is a direct-fit replacement for the 1991-1994 Toyota Tercel and the 1995 Toyota Paseo, all engines. Check the Buyer's Guide tab to confirm your vehicle.
Does this master cylinder come with a reservoir?
Yes. The reservoir and sensor are included with the master cylinder. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners.
What are the bore size and outlet threads?
The bore diameter is 0.813 in. The unit has two outlets, and the rearward and secondary outlets use M10 x 1.0 threads.
What are signs a brake master cylinder may need replacing?
Common signs are a soft or sinking pedal, fluid seeping around the unit, or a reservoir level that keeps dropping. Other brake faults can cause similar symptoms, so diagnose the cause first.
Does the master cylinder need to be bled when installed?
Master cylinders are typically bench bled before installation, and the brake system is bled afterward. Follow the vehicle service information for the correct procedure and brake fluid.
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.