Put brake-pedal pressure to work at the rear drums with this Dorman drum brake wheel cylinder, part number W610120 from the Dorman - First Stop line. It installs as a direct replacement on the rear drum brakes of the 2003-2005 Kia Rio. See the "Vehicles it fits" section for engine details.
When you press the pedal, hydraulic pressure from the master cylinder pushes the wheel cylinder's pistons outward, which moves the brake shoes against the drum. Dorman engineered this unit to be a direct match for the original drum brake wheel cylinder on the applications it is listed for.
- Direct match for the original: Built to mirror the original wheel cylinder's fit, function and performance. Each unit is manufactured and tested for quality assurance.
- EPDM rubber cups and boots: The cups and boots are made from high-quality EPDM rubber.
- Surface-tested bores: The cylinder bores are surface-tested to verify an optimum sealing surface for the pressure cups.
- Cost-effective service step: Dorman describes replacing the cylinder during a drum brake service as a cost-effective fix and the fastest way to address brake performance.
Signs a wheel cylinder may need replacing include brake fluid seeping inside the drum or onto the shoes, a soft or sinking pedal, and a falling fluid level. Diagnose the cause before you replace parts. Replacing both rear wheel cylinders together is recommended for balanced braking.
Interchange: 072-9515 · 134.50006 · 135.50006 · 375-21005
0729515 · 13450006 · 13550006 · 37521005 · P3914 · 34263 · WC257580 · 58330FD100 · 58330FD200 · WC370156 · F140449 · WC140449
This part cross-references / interchanges with the following part numbers:
P3914, 072-9515, 34263, 134.50006, 135.50006, WC257580, 375-21005, 58330FD100, 58330FD200, WC370156, F140449, WC140449
Frequently Asked Questions
What does a drum brake wheel cylinder do?
It turns hydraulic pressure from the master cylinder into piston movement. When you press the brake pedal, the pistons push the brake shoes outward against the drum.
Does the Dorman W610120 fit the 2003-2005 Kia Rio?
Yes. It is a direct-fit replacement for the rear drum brakes on the 2003-2005 Kia Rio. The "Vehicles it fits" section shows the full application details.
What are the cups and boots made of?
Dorman makes the cups and boots of this wheel cylinder from high-quality EPDM rubber. The bores are surface-tested to verify an optimum sealing surface for the pressure cups.
What are signs a wheel cylinder may need replacing?
Common signs are brake fluid leaking inside the drum or onto the shoes, a soft or sinking brake pedal, and a dropping fluid level. Confirm the cause before you replace parts.
Should I replace both rear wheel cylinders at the same time?
Replacing both sides together is recommended for balanced braking. Follow the vehicle service information for bleeding the brakes and for fastener torque after installation.
