Convert hydraulic line pressure into the mechanical force that pushes the brake shoes outward against the drum with the Dorman - First Stop Drum Brake Wheel Cylinder W37635. It installs as the rear right drum brake wheel cylinder and is engineered to drop in like the original on the listed applications, so replacing it while the drum brakes are apart is a straightforward way to keep the rear hydraulics working as intended.
- Cast-iron body: a 0.75 in bore gives the pressure cups a surface-tested sealing surface.
- EPDM rubber cups and boots: high-quality rubber components designed for long-lasting sealing performance.
- M10 x 1.0 inlet thread: 10 mm thread diameter with a 1.0 pitch for the brake line connection.
- Bleeder screw included: the bleeder screw is included; a bleeder screw cap is not included.
Signs this part may need replacing include brake fluid seeping from the cylinder or its boots, a soft or sinking pedal, or contaminated shoes. If a leaking wheel cylinder is the cause, this replaces it — diagnose the cause before replacing. Made in China.
Fitment (all engines): 1983-1986 Toyota Camry, 1984-1985 Toyota Corolla, 1984-1987 Toyota Tercel, 1986-2002 Toyota Celica, 1988-1992 Toyota Corolla, 1998-2002 Chevrolet Prizm, 1998-2002 Toyota Corolla, and 2018-2019 Toyota Yaris.
Manufacturer part number W37635.
Frequently Asked Questions
What does the W37635 wheel cylinder do?
It uses hydraulic pressure from the brake line to push the drum brake shoes outward against the drum. It's cataloged as the rear right wheel cylinder on the listed applications.
Which vehicles does this fit?
It's a rear right drum brake wheel cylinder for applications including the 1983-1986 Toyota Camry, 1986-2002 Toyota Celica, 1998-2002 Toyota Corolla and 2018-2019 Toyota Yaris — see the Buyer's Guide tab for the full list.
Is a bleeder screw included?
Yes, the bleeder screw is included. A bleeder screw cap is not included.
What is the bore size and inlet thread?
The bore has a 0.75 in inside diameter, and the brake line inlet uses an M10 x 1.0 thread (10 mm diameter, 1.0 pitch).
How do I know if the wheel cylinder is failing?
Common signs include brake fluid leaking from the cylinder or its boots, a soft or sinking pedal, and contaminated shoes. Diagnose the cause before replacing, since these symptoms can have other causes.
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