Keep your rear drum brakes applying even, controlled hydraulic force with the Dorman - First Stop Drum Brake Wheel Cylinder (P/N W610010). It drops in as a direct-fit replacement for the rear brakes on the 1998-2003 Toyota Sienna [All], which uses two cylinders (one per rear wheel). Mounted in the rear drum assembly, the wheel cylinder converts hydraulic pressure from the master cylinder into the mechanical force that pushes the brake shoes outward against the drum. If a leaking, seized, or corroded original cylinder is behind your dragging or uneven rear brakes, replacing it while you service the drums is a quick, sure way to bring the hydraulics back.
- Direct-fit design: engineered to match the original wheel cylinder's fit, function, and performance on the listed application.
- Cast-iron body, 0.875 in bore: the bore is surface-tested to provide an optimal sealing surface for the pressure cups.
- EPDM rubber cups and boots for long-lasting sealing.
- Bleeder screw included; bleeder screw cap not included. Inlet thread size M10 x 1.0 (10 mm, 1.0 pitch).
Country of origin: China.
Interchange: W906792 · 101-1245 · 1011245 · W-56501 · W56501 · 072-9338 · 0729338 · 34213 · 134.44801 · 135.44801 · WC250210 · 375-76051 · 37576051 · WC370059 · 4755008010 · F134485 · WC134485. Manufacturer part number W610010.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this wheel cylinder do?
It's a rear drum-brake wheel cylinder that converts hydraulic pressure from the master cylinder into mechanical force, pushing the brake shoes outward against the drum.
Will it fit my vehicle?
It's a direct-fit replacement for the rear brakes on the 1998-2003 Toyota Sienna [All]. See the Buyer's Guide tab to confirm the fit for your vehicle.
How many do I need?
Each listed application uses two cylinders (one per rear wheel). This listing is for one unit, so order two for a complete rear-axle replacement. Replacing both sides together is good practice.
What is the bore size and inlet thread?
The bore inside diameter is 0.875 in, and the brake component inlet thread size is M10 x 1.0 (10 mm diameter, 1.0 pitch).
Does it include a bleeder screw?
Yes, a bleeder screw is included. A bleeder screw cap is not included. The cups and boots are made from EPDM rubber, and the body is cast iron.
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