Keep hydraulic pressure moving to your drum brake shoes with the Dorman First Stop Drum Brake Wheel Cylinder W20932. Mounted at the wheel, it converts brake-line fluid pressure into the outward force that pushes the shoes against the drum. It is a direct-fit replacement cataloged for the front-left or rear-left position and was engineered to match the fit, function and performance of the original wheel cylinder on classic Chevrolet and GMC applications, including the 1955-1957 Chevrolet Bel Air, One-Fifty Series and Two-Ten Series, 1957 Corvette and Del Ray, 1959 Bel Air, Biscayne, Brookwood and Impala, 1960-1963 C10 Pickup, 1964-1965 G10 Van and 1964-1965 GMC G1500 (All engines). See the Buyer's Guide tab for the full list.
Replacing the wheel cylinder while servicing the drum brakes is a straightforward step in a complete brake job. Sold individually (package contains one cylinder); for even, balanced braking it is best practice to replace the opposite-side cylinder as a matched pair. Country of origin: China.
Interchange: 84-36056 · 8436056 · W906119 · 101-1503 · 1011503 · W-82056 · W82056 · 134.62056 · 134.62077 · WC250070 · 375-47032 · 37547032 · 375-47042 · 37547042 · 5455476 · 5455698 · 5456944 · WC20932 · F20932. Manufacturer part number W20932.
This part cross-references / interchanges with the following part numbers:
What does the W20932 wheel cylinder do?
Mounted at the wheel, it converts hydraulic brake-line pressure into the outward force that pushes the drum brake shoes against the drum.
Does it come with a bleeder screw?
Yes, a bleeder screw is included. The bleeder screw cap is not included.
What is the bore size and inlet thread?
The bore inside diameter is 1.125 in and the brake-line inlet thread is 7/16-20 UNF (7/16 in thread diameter).
Which vehicles does this fit?
It is cataloged for the front-left or rear-left position on classic Chevrolet and GMC models such as the Bel Air, Impala, C10 Pickup and G10/G1500 vans. See the Buyer's Guide tab for the full list.
Should I replace both wheel cylinders?
It is sold individually (one per package). For even, balanced braking it is best practice to replace the opposite-side cylinder and inspect the shoes and hardware at the same time.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.