Keep the hydraulics behind your drum brakes working the way they should with the Dorman - First Stop Drum Brake Wheel Cylinder W28721. This direct-fit replacement installs in the FRONT LEFT or FRONT RIGHT position on classic Dodge trucks and vans — the 1957-1958 D200 Pickup, 1959 D100 Pickup, 1960 D100 Series, 1960 / 1961-1964 / 1966-1968 P300 Van, and 1961-1964 P200 Van (All engines). When you press the brake pedal, hydraulic pressure enters the cylinder and pushes its pistons outward to force the drum brake shoes against the drum.
Engineered to match the original wheel cylinder's fit, function and performance on the listed applications, then manufactured and tested for quality assurance.
- Cast iron body: bore is surface-tested to provide an optimum sealing surface for the pressure cups.
- Quality sealing materials: high-quality EPDM rubber cups and boots for long-lasting performance.
- Specs: 1.125 in inside diameter; 7/16-20 UNF inlet thread (7/16 in thread diameter).
- Hardware: bleeder screw included; bleeder screw cap not included.
Signs the original may need replacing include brake fluid weeping at the wheel or a soft, spongy pedal — diagnose the cause before replacing. This listing is for one cylinder; replacing both sides as a matched pair is recommended for balanced braking. Country of origin: China.
Interchange: W906142 · 134.68018 · 170155 · 1790155 · 1924055 · WC256940 · 375-40038 · 37540038 · 5461741 · 5473065 · WC28721 · F28721. Manufacturer part number W28721.
This part cross-references / interchanges with the following part numbers:
W906142, 134.68018, 170155, 1790155, 1924055, WC256940, 375-40038, 5461741, 5473065, WC28721, F28721
