Dorman - First Stop Drum Brake Wheel Cylinder P/N:W28804

$24.99
MPN: W28804
Item Package Quantity: 1
Adding to cart… The item has been added

Have questions?

Dorman - First Stop Drum Brake Wheel Cylinder P/N:W28804
Dorman - First Stop Drum Brake Wheel Cylinder P/N:W28804
$24.99

Push the brake shoes firmly against the drum with the Dorman - First Stop Drum Brake Wheel Cylinder W28804. This rear (left-hand) drum brake wheel cylinder uses hydraulic pressure from the brake line to drive its internal pistons and cups outward, forcing the shoes against the drum. It drops in as a direct replacement across classic Edsel, Ford, and Mercury models — including the 1958 Edsel Bermuda, Citation, Corsair, Pacer, Ranger, Roundup and Villager, plus the Ford Fairlane, Falcon, Mustang, Thunderbird and Torino, and the Mercury Comet, Cougar, Cyclone, Meteor and Montego.

Dorman engineered it as a direct replacement to match the original wheel cylinder's fit, function, and performance on the listed vehicles.

  • Cast iron body: the cast iron housing carries the hydraulic pistons and cups.
  • EPDM rubber cups and boots: high-quality EPDM cups and boots for long-lasting sealing.
  • Surface-tested bore: the cylinder bore is surface-tested to provide a sound sealing surface for the pressure cups.
  • Bleeder screw included: ships with a bleeder screw (the bleeder screw cap is not included).

Specs: 0.906 in inside diameter bore with a 3/8-24 in inlet thread. Replacing the wheel cylinder while servicing the drum brakes is a fast, sure way to help keep the hydraulic side of the brakes performing. Made in China.

Fitment (engine: All): 1958 Edsel Bermuda, Citation, Corsair, Pacer, Ranger, Roundup & Villager; 1962-1965, 1967-1968 & 1970 Ford Fairlane; 1963-1968 Ford Falcon; 1964-1966 & 1970-1972 Ford Mustang; 1959-1960 Ford Thunderbird; 1968-1971 Ford Torino; 1963-1968 Mercury Comet; 1970-1972 Mercury Cougar; 1964-1968 & 1970 Mercury Cyclone; 1962-1963 Mercury Meteor; 1968 & 1970-1971 Mercury Montego. Some applications use two per vehicle (e.g. the 1970-1972 Mustang and Cougar); this listing is for one, and the quantity needed varies by application. See the Buyer's Guide tab for the full list.

Interchange: 784-34023 · 78434023 · 84-34023 · 8434023 · W906174 · 101-1402 · 1011402 · W-81023 · W81023 · 33625 · 134.61023 · 135.61023 · 1631816 · 3184348 · WC13625 · 375-54028 · 37554028 · B9S2262A · C20Z2261A · C30Z2262B · D2ZZ2262B · D2ZZ2282D · 5461520 · 5463040 · 2036019 · WC36019 · F28804 · WC28804. Manufacturer part number W28804.

This part cross-references / interchanges with the following part numbers:

784-34023, 84-34023, W906174, 101-1402, W-81023, 33625, 134.61023, 135.61023, 1631816, 3184348, WC13625, 375-54028, B9S2262A, C20Z2261A, C30Z2262B, D2ZZ2262B, D2ZZ2282D, 5461520, 5463040, 2036019, WC36019, F28804, WC28804

Frequently Asked Questions

What does the W28804 wheel cylinder do?

It's the rear (left) drum brake wheel cylinder — hydraulic pressure from the brake line pushes its internal pistons and cups outward, forcing the brake shoes against the drum.

Which vehicles does it fit?

It's a direct replacement for classic Edsel, Ford, and Mercury models such as the Fairlane, Falcon, Mustang, Thunderbird, Torino, Comet, Cougar and more — see the Buyer's Guide tab for the full year-by-year list.

Is a bleeder screw included?

Yes, the wheel cylinder ships with a bleeder screw. The bleeder screw cap is not included.

What are the bore and thread specs?

It has a 0.906 in inside diameter bore and a 3/8-24 in inlet thread, with a cast iron body and EPDM rubber cups and boots.

What are signs this wheel cylinder may need replacing?

Brake fluid seeping at the backing plate or boots, a soft or low pedal, or shoes not applying evenly. Diagnose the cause first, since these signs can have other origins.