Keep the rear drum brakes on your Nissan truck pressing the shoes against the drums as designed with the Dorman drum brake wheel cylinder W37571 from Dorman - First Stop. It is a direct-fit rear replacement for the 1982-1986 Nissan 720, 1986-1989 Nissan D21 and 1983-1989 Nissan Pickup. See the "Vehicles it fits" section for engine details.
When you press the pedal, the wheel cylinder turns hydraulic brake fluid pressure into force, pushing its pistons outward to spread the brake shoes against the drum. Dorman engineered this unit as a direct match for the original wheel cylinder in fit, function and performance on the listed applications. It is manufactured and tested for quality assurance.
- Ideal replacement: Specifically engineered to directly match the original drum brake wheel cylinder on the listed vehicles.
- Cost-effective fix: Replacing the cylinder while the drum brakes are already apart for service is a practical, cost-effective step.
- Quality materials: Made with high-quality EPDM rubber cups and boots.
- Professionally tested: Wheel cylinder bores are surface-tested to provide an optimum sealing surface for the pressure cups.
Signs a wheel cylinder may need replacing include brake fluid seeping inside the drum or onto the backing plate, a soft or sinking pedal, or uneven braking. Diagnose the cause before replacing the part. For balanced braking, consider replacing the rear wheel cylinders on both sides together. Bleed the brake system after installation.
Interchange: 784-04305 · 84-04305 · 101-1152 · W-51305 · 072-8239 · 072-8366 · 134.42305 · 135.42305 · 375-67025
78404305 · 8404305 · 1011152 · W51305 · 0728239 · 0728366 · 13442305 · 13542305 · 37567025 · 18E195 · W906514 · 33876 · WC13876 · 4410008W10 · 4410008W11 · 4410008W12 · WC37571 · F114206 · WC114206
This part cross-references / interchanges with the following part numbers:
18E195, 784-04305, 84-04305, W906514, 101-1152, W-51305, 072-8239, 072-8366, 33876, 134.42305, 135.42305, WC13876, 375-67025, 4410008W10, 4410008W11, 4410008W12, WC37571, F114206, WC114206
Frequently Asked Questions
Which Nissan trucks does wheel cylinder W37571 fit?
It is listed as a rear wheel cylinder for the 1982-1986 Nissan 720, 1986-1989 Nissan D21 and 1983-1989 Nissan Pickup. Check the "Vehicles it fits" section for engine details.
What does a drum brake wheel cylinder do?
It converts hydraulic brake fluid pressure into mechanical force. Its pistons push outward to press the brake shoes against the drum when you apply the brakes.
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 provide an optimum sealing surface for the pressure cups.
What are signs a wheel cylinder may need replacing?
Signs include brake fluid seeping inside the drum or onto the backing plate, a soft or sinking pedal, or uneven braking. Diagnose the cause before replacing the part.
Is anything needed after installing the wheel cylinder?
Yes. The brake hydraulic system must be bled to remove air after installation. Follow the vehicle service information for fittings, torque values and the bleeding procedure.
