Keep your rear drum brakes clamping evenly with the Dorman - First Stop Drum Brake Wheel Cylinder W37638, a direct-fit replacement for the 1980-1981 Honda Accord [All]. Mounted at the rear drum, the wheel cylinder converts hydraulic brake-line pressure into mechanical force, pushing the brake shoes outward against the drum so the wheel slows. Dorman engineers this unit to match the fit, function and performance of the original cylinder on the listed application, and each one is manufactured and tested for quality assurance.
Replacing the wheel cylinder while servicing drum brakes is a fast, cost-effective way to keep the hydraulics sealing properly. This listing is for one cylinder; these applications use two per vehicle, so order 2 and replace both rear sides together as a matched set for even braking. Country of origin: Taiwan.
Interchange: 18E235 · 784-08001 · 78408001 · 84-08001 · 8408001 · W906554 · 101-1087 · 1011087 · W-54001 · W54001 · 33843 · 134.40001 · 135.40001 · WC13843 · 375-59001 · 37559001 · 43300671602 · WC37638 · 2037638 · F103376 · WC103376 · Manufacturer part number W37638
This part cross-references / interchanges with the following part numbers:
What vehicle does this wheel cylinder fit?
It is a direct-fit replacement for the 1980-1981 Honda Accord (All engines). These applications use two rear wheel cylinders, so order 2 for a complete rear replacement.
What does a drum brake wheel cylinder do?
It converts hydraulic brake-line pressure into mechanical force, pushing the brake shoes outward against the drum. Its EPDM cups seal the bore to hold that pressure.
Is a bleeder screw included?
Yes, a bleeder screw is included with the cylinder. A bleeder screw cap is not included.
What are the bore and inlet thread specs?
The bore has a 0.75 in inside diameter, and the inlet thread is M10 x 1.0 with a 10 mm thread diameter and a 1.0 thread pitch.
What are signs this wheel cylinder may need replacing?
Signs may include brake fluid leaking behind the drum, a soft or sinking pedal, and uneven rear braking. Diagnose the cause before replacing, as other components can produce these 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.