Keep hydraulic pressure flowing to your rear drum brakes with the Dorman - First Stop Drum Brake Wheel Cylinder (W26172). Cataloged for the rear upper and rear lower positions, it uses hydraulic pressure from the master cylinder to push the brake shoes outward against the drum. It drops in as a direct-fit replacement for applications like the 1970 and 1977-1979 Ford F-700 and F-7000, 1980-1982 Chevrolet B60 and C60, 1980-1985 Chevrolet C70, plus many GMC and International medium-duty trucks (engine: All) — see the Buyer's Guide tab for the full list.
- Engineered to match: built to replace the original wheel cylinder's fit, function, and performance on the listed vehicles, and tested for quality assurance.
- Cast iron body: a durable cast iron housing with a 1.75 in inside diameter bore.
- Quality sealing materials: high-quality EPDM rubber cups and boots for long-lasting performance.
- Surface-tested bore: the wheel cylinder bore is surface-tested to provide an optimum sealing surface for the pressure cups.
- Bleeder screw included: ships with a bleeder screw (3/8-24 in inlet thread; 3/8 thread diameter); a bleeder screw cap is not included.
Replacing the wheel cylinder while servicing the drum brakes is a fast, cost-effective way to help maintain reliable brake performance. Quantity varies by application (some use one, others two); this listing supplies one drum brake wheel cylinder. Country of origin: China.
Interchange: 18E26 · 84-50006 · 8450006 · 84-58021 · 8458021 · W906136 · W-82006 · W82006 · 33400 · 134.62006 · 135.62006 · 1921101 · 1921105 · WC13400 · 375-47012 · 37547012 · C5TZ2261A · 3772245 · 5473154 · 5473186 · 684835R91 · 2026172 · WC26172 · F26172. Manufacturer part number W26172.
This part cross-references / interchanges with the following part numbers:
18E26, 84-50006, 84-58021, W906136, W-82006, 33400, 134.62006, 135.62006, 1921101, 1921105, WC13400, 375-47012, C5TZ2261A, 3772245, 5473154, 5473186, 684835R91, WC26172, F26172
