Dorman - First Stop Drum Brake Wheel Cylinder Kit P/N:46348
Rebuild a leaking rear drum brake wheel cylinder with the Dorman - First Stop Drum Brake Wheel Cylinder Kit (P/N 19381). This repair kit supplies the internal seals and boots made to match the original parts needed to service the wheel cylinder on the listed applications — a direct-fit repair for the rear drum brakes on a wide range of classic and medium-duty trucks and vans, including the 1951-1959 GMC 300, 1967-1970 Chevrolet C30 Pickup, 1980-1989 Chevrolet B60, 1980-1987 Chevrolet C60, 1980-1994 Ford B-600 and 1980-1994 Ford F-600 (All engines). See the Buyer's Guide tab for the full list of 109 applications.
In a drum brake, the wheel cylinder uses hydraulic pressure to push its pistons outward against the brake shoes; over time the rubber cups and boots wear and can allow fluid to seep. If a worn or leaking wheel cylinder is the cause, this kit reseals the cylinder rather than replacing the whole unit.
Quantity used varies by application — many trucks take two (one per rear wheel), so order per your Buyer's Guide. Manufacturer part number 19381. Country of origin: China.
What's included in this repair kit?
It includes dust boots and wheel cylinder cups (the boots and seals to rebuild the cylinder). It does not include the wheel cylinder pistons, expander spring, bleeder screw, bleeder screw cap or mounting hardware.
What bore size does this kit fit?
It is listed with a 1.5 in bore size, matching the original wheel cylinder bore on the listed applications.
Is this for the front or rear brakes?
It's cataloged for the rear drum brakes on the listed applications.
How many kits do I need?
Quantity used varies by application — many trucks use two (one per rear wheel). Check the Buyer's Guide tab for your vehicle.
What are signs the wheel cylinder may need service?
Signs include brake fluid seeping at the backing plate or drum and a soft or sinking brake pedal. Diagnose the cause before replacing, as other parts can produce the same symptoms.
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.