Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37778
Put hydraulic pressure to work at the rear drums with this Dorman drum brake wheel cylinder, the Dorman - First Stop W101610, which pushes the brake shoes out against the drum when the pedal is pressed. It fits many vehicles, among them the 1991-2004 Ford Grand Marquis, 1999-2003 Dodge Ram 2500 Van and 1999-2003 Dodge Ram 3500 Van. See the Buyer's Guide tab for the full list.
Dorman engineered this rear wheel cylinder as a direct replacement that matches the original's fit, function and performance on the listed applications. It is manufactured and tested for quality assurance.
Signs a wheel cylinder may need replacing include brake fluid seeping inside the drum, a soft or sinking pedal, or pulling to one side while braking. Replacing the wheel cylinders on both sides of the axle together is recommended for even, balanced braking, and the brake system should be bled after installation as directed by the vehicle service information.
Interchange: 784-34035 · 84-34035 · W-81035 · 134.61035 · 135.61035 · 375-56009
78434035 · 8434035 · W81035 · 13461035 · 13561035 · 37556009 · 18E134 · 18E431 · W906420 · W906770 · 33774 · 34240 · 5010005AA · WC13774 · WC250520 · WC250710 · WC250720 · D9AZ2261B · F9AZ2261B · 101610 · WC370077 · WC37343 · F101610 · WC101610
This part cross-references / interchanges with the following part numbers:
What does a drum brake wheel cylinder do?
When you press the brake pedal, hydraulic pressure inside the wheel cylinder forces the brake shoes outward against the drum. The W101610 does this job at the rear drum brakes.
Does this wheel cylinder fit the 1991-2004 Ford Grand Marquis?
Yes, the 1991-2004 Ford Grand Marquis is a listed application, and the part fits many other vehicles. Check the Buyer's Guide tab for the full list.
Will it fit a 1999-2003 Dodge Ram 2500 Van or Ram 3500 Van?
Yes, both the 1999-2003 Dodge Ram 2500 Van and the 1999-2003 Dodge Ram 3500 Van are listed applications for the Dorman - First Stop W101610.
What are the cups and boots made of?
Dorman makes the cups and boots from high-quality EPDM rubber. The cylinder bores are surface-tested to give the pressure cups an optimum sealing surface.
What are signs a wheel cylinder may need replacing?
Common signs include brake fluid seeping inside the drum or onto the backing plate, a soft or sinking brake pedal, and pulling to one side when braking. Diagnose the cause before you replace parts.
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.