Dorman - First Stop Brake Master Cylinder P/N:M390233
Turn pedal effort into hydraulic braking pressure with the Dorman First Stop Brake Master Cylinder M630291, a new replacement for the 2005-2008 Honda Pilot, 2006-2008 Honda Ridgeline and 2003-2006 Acura MDX. Dorman designed it to match the original master cylinder's design, function and performance on the listed applications. It is made from new, high-quality materials for a safe, durable replacement.
Specifications: 1.063 in bore diameter, two outlets, M14 x 1.5 secondary and rearward outlets, and a 1.5 mm primary outlet thread pitch. The reservoir and sensor are included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan.
If a leaking or internally worn master cylinder is causing a spongy or sinking pedal, this unit replaces it. Bleed the brake system as directed by the service procedure after installation.
Quantity per application: 1.
See the Buyer's Guide tab for every listed vehicle.
Interchange: 100-1360 · 072-9603 · 13-3174 · 11-3174 · 130.40058 · 355-59039
13865 · 46100S3VA11 · 46100SJCA51 · NM55336 · MC391007 · F142383 · MC142383 · 1001360 · 0729603 · 133174 · 113174 · 13040058 · 35559039
This part cross-references / interchanges with the following part numbers:
Will this master cylinder fit my 2005-2008 Honda Pilot?
It is listed for the 2005-2008 Honda Pilot, and it also fits the 2006-2008 Honda Ridgeline and 2003-2006 Acura MDX. Each vehicle uses one.
Does the M630291 come with a reservoir?
Yes. It includes a reservoir and a sensor. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused.
What is this master cylinder made of?
The master cylinder is aluminum. All of its rubber components use a high-quality EPDM compound that resists glycol-based brake fluid.
What are signs a brake master cylinder may need replacing?
Common signs include a spongy or slowly sinking brake pedal, fluid leaking at the master cylinder, or a brake warning light. Diagnose the cause first, because other brake parts can cause the same symptoms.
What are the bore size and outlet specs?
It has a 1.063-inch bore and two outlets. The secondary and rearward outlets use M14 x 1.5 threads, and the primary outlet has a 1.5 mm thread pitch.
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.