Put a fresh hydraulic cylinder to work at the wheel with the Dorman First Stop Drum Brake Wheel Cylinder W78744, a cast iron unit that turns brake fluid pressure into the force that pushes the shoes out against the drum. It fits many vehicles, among them the 1980-1989 Chevrolet B60, 1980-1989 GMC B6000 and 1987 Chevrolet C50, all engines. See the Buyer's Guide tab for the full list. It is cataloged for the rear left position, upper or lower on some applications.
Dorman engineered this direct-replacement wheel cylinder as a direct match for the original in fit, function and performance on particular vehicles. It is produced and tested for quality assurance.
- Cost-effective service: replacing the cylinder while the drum brakes are already being serviced is a quick, cost-effective way to address the hydraulic side of the brake job.
- Quality materials: built with high-quality EPDM rubber cups and boots.
- Professionally tested: the cylinder bores are surface-tested to give the pressure cups an optimum sealing surface.
Specifications: cast iron material, 1.5 in inside diameter, 7/16-24 brake inlet thread. The bleeder screw is included, but the bleeder screw cap is not. The package holds one drum brake wheel cylinder. Quantity varies by application, and some listed vehicles use two. Country of origin: China.
Signs a wheel cylinder may need replacing include brake fluid seeping onto the shoes and drum, a soft or low brake pedal, and uneven braking. Diagnose the cause before replacing, and bleed the brakes after installation.
Interchange: 84-44011 · 101-1635 · W-86011 · 134.66011 · 135.66011 · 375-47064
8444011 · 1011635 · W86011 · 13466011 · 13566011 · 37547064 · 18E82 · W906336 · 33655 · WC250110 · 2620632 · 5472484 · 5472820 · 78744 · WC37240 · F78744 · WC78744
This part cross-references / interchanges with the following part numbers:
18E82, 84-44011, W906336, 101-1635, W-86011, 33655, 134.66011, 135.66011, WC250110, 375-47064, 2620632, 5472484, 5472820, 78744, WC37240, F78744, WC78744
