Dorman - First Stop Brake Master Cylinder P/N:M133745
Dorman M39795 brake master cylinder for the 1988-1990 Nissan Pathfinder turns pedal force into hydraulic pressure for the brakes. It is made entirely of new materials.
A pedal that sinks or feels soft, brake fluid around the cylinder, or a low reservoir level can mean this master cylinder is worn, though a leaking brake hose or a sticking caliper can be behind them too, so find the source before replacing anything.
It fits the 1988-1990 Nissan Pathfinder, which takes one, and this listing is a single cylinder.
Fit and size
Build and materials
One master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new bolts, since the old ones may not be reusable.
Interchange: 100-2960 · 072-8680 · 13-2278 · 11-2278 · 130.42309 · 131.42309
18M441 · M900648 · 12556 · 12804 · MC251520 · M52278 · NM52278 · 46010V7400 · MC39795 · F119344 · F128382 · MC119344
This part cross-references / interchanges with the following part numbers:
Is this the right 1988-1990 Nissan Pathfinder master cylinder?
Yes. Dorman M39795 is a brake master cylinder for the 1988-1990 Nissan Pathfinder, and that vehicle takes one.
Does the Dorman M39795 master cylinder come with the reservoir?
Yes. Dorman M39795 comes with its reservoir and sensor. Mounting hardware is not included.
What is the bore size of this brake master cylinder?
The bore diameter is 0.938 in. It has three outlets, and the rearward outlet is M10 x 1.0.
What brake pedal problems can point to a worn master cylinder?
A pedal that sinks or feels soft, fluid leaking at the cylinder, or a low reservoir level can be signs. A shop can test the brake hydraulics to confirm.
Does Dorman M39795 replace master cylinder 18M441?
Yes. 18M441 is one of the numbers on the Interchange line that this Dorman M39795 master cylinder replaces.
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.