Put the squeeze back on your rear drum brakes with the Dorman - First Stop Drum Brake Wheel Cylinder (P/N W120343). Mounted at the rear, this wheel cylinder converts hydraulic brake-line pressure into the outward force that pushes the brake shoes against the drum. It drops in as a direct-fit replacement engineered to match the original wheel cylinder's fit, function, and performance on the 1990-1994 Nissan D21, 1990-1993 and 1995-1997 Nissan Pickup, 1996-1998 Nissan Pathfinder, 1997-1998 Infiniti QX4, and the 1998-2002 and 2011-2014 Nissan Frontier (all engines).
Replacing the wheel cylinder while servicing your drum brakes is a fast, cost-effective way to help keep the hydraulic side of the system working properly. If a leaking or seized wheel cylinder is behind a soft pedal, fluid seepage at the backing plate, or uneven rear braking, this unit replaces it. The listed applications use two (one per rear wheel); this package contains one wheel cylinder, so order two for a complete rear job. Country of origin: China.
Interchange: 18E334 · 784-04315 · 78404315 · 84-04315 · 8404315 · W906667 · 101-1163 · 1011163 · W-51315 · W51315 · 072-8743 · 0728743 · 34104 · 34144 · 134.42315 · 135.42315 · WC14104 · WC14144 · WC250870 · 375-67034 · 37567034 · 4410037G10 · 4410037G11 · 4410037G12 · 441008B400 · 441008Z400 · 2037871 · WC37871 · F120343 · WC120343. Manufacturer part number W120343.
This part cross-references / interchanges with the following part numbers:
What does this wheel cylinder do?
It converts hydraulic brake-line pressure into outward force that pushes the rear brake shoes against the drum. If a leaking or seized original is causing a soft pedal or fluid at the backing plate, this replaces it.
Is a bleeder screw included?
Yes, a bleeder screw is included. A bleeder screw cap is not included.
How many do I need?
The listed applications use two — one per rear wheel. This package contains one wheel cylinder, so order two to service both sides of the rear axle together.
What is the bore size and inlet thread?
The bore has a 0.813 in inside diameter, and the fluid inlet uses an M10 x 1.0 thread.
Which vehicles does it fit?
It's a direct-fit replacement for the 1990-1994 Nissan D21, 1990-1993 & 1995-1997 Nissan Pickup, 1996-1998 Pathfinder, 1997-1998 Infiniti QX4, and 1998-2002 & 2011-2014 Nissan Frontier. See the Buyer's Guide tab.
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.