Keep hydraulic pressure flowing to your rear drum brakes with the Dorman First Stop Drum Brake Wheel Cylinder (W37634). This wheel cylinder uses brake fluid pressure to push its internal cups and pistons outward, forcing the brake shoes against the drum. It's a direct-fit replacement engineered to match the fit, function and performance of the original rear wheel cylinder on the 1972-1974 and 1984-1985 Toyota Pickup and the 1984-1985 Toyota 4Runner — swapping the cylinder while you service the drum brakes is a quick, sure way to keep the drum-brake hydraulics sealing as intended.
- Cast iron body: with a 0.75 in bore that is surface-tested to provide a sealing surface for the pressure cups.
- EPDM rubber cups and boots: high-quality materials for long-lasting performance.
- Bleeder screw included: a bleeder screw is included; a bleeder screw cap is not included.
- M10 x 1.0 inlet thread: 10 mm thread diameter with a 1.0 thread pitch.
These Toyota applications use two rear wheel cylinders, so order 2 for a complete rear-axle replacement; each package contains one cylinder. Country of origin: China.
Interchange: 18E231 · 784-22701 · 78422701 · 84-22700 · 8422700 · 84-22701 · 8422701 · W906427 · W906550 · 101-1212 · 1011212 · W-56701 · W56701 · 072-3296 · 0723296 · 33890 · 134.44701 · 135.44701 · WC13890 · 375-76024 · 37576024 · 2037634 · WC37350 · WC37634 · 4755029305 · 4755035160 · 4755039125 · F96720 · WC96720
Manufacturer part number W37634.
This part cross-references / interchanges with the following part numbers:
18E231, 784-22701, 84-22700, 84-22701, W906427, W906550, 101-1212, W-56701, 072-3296, 33890, 134.44701, 135.44701, WC13890, 375-76024, WC37350, WC37634, 4755029305, 4755035160, 4755039125, F96720, WC96720
