Dorman - First Stop Brake Master Cylinder P/N:M390296
Every stop starts at the pedal. The Dorman First Stop Brake Master Cylinder M630322 turns pedal effort into hydraulic pressure for the brake circuits. It installs as a direct replacement for the 2004-2007 Toyota Highlander (All engines), and Dorman precision-engineers it to match the original master cylinder's design, function, and performance on that application.
Specifications: 0.875 in. bore diameter · 2 outlets · rearward outlet size M10 x 1.0 · secondary outlet thread M10 x 1.0 · primary outlet thread pitch 1 mm · reservoir included · sensor included · mounting hardware not included · country of origin: China. The package contains one master cylinder.
Signs a master cylinder may need replacing include a soft or sinking brake pedal, brake fluid leaking at the cylinder, or a brake warning light. Other brake components can cause the same symptoms, so diagnose the system before replacing. A master cylinder is typically bench-bled before installation, so follow the vehicle service information for the correct procedure.
Interchange: 100-1694 · 13-3243 · 11-3243 · 130.44820 · 355-76163
1001694 · 133243 · 113243 · 13044820 · 35576163 · NM55329A · NM55340 · MC390861 · 4702848040 · 4702848041 · F142633 · MC142633
This part cross-references / interchanges with the following part numbers:
Does the Dorman M630322 include a reservoir?
Yes, a reservoir and a sensor come with the master cylinder; mounting hardware is not included.
What vehicles does this master cylinder fit?
It fits the 2004-2007 Toyota Highlander (All engines), which uses one master cylinder.
What are the bore size and outlet threads?
It has a 0.875 in. bore and two outlets; the rearward outlet size and secondary outlet thread are M10 x 1.0, and the primary outlet thread pitch is 1 mm.
What is the M630322 made of?
The cylinder housing is aluminum. All rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
What are signs my brake master cylinder may need replacing?
A soft or sinking brake pedal, fluid leaking at the cylinder, or a brake warning light can be signs. Other brake parts can cause these symptoms, so diagnose the system first.
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.