Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37685

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$15.99
MPN: W37685
Item Package Quantity: 1
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Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37685
Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37685
$15.99

Keep your rear drum brakes applying evenly with the Dorman - First Stop Drum Brake Wheel Cylinder (W37685). This rear drum brake wheel cylinder drops in as a direct-fit replacement for the 1987-1990 Nissan Pulsar NX [All] and 1987-1990 Nissan Sentra [All], where it converts hydraulic line pressure into the outward force that pushes the brake shoes against the drum. Dorman engineered it to match the original cylinder's fit, function and performance on the listed vehicles, and each unit is manufactured and tested for quality.

  • Aluminum body: the cylinder bore is surface-tested to provide an optimum sealing surface for the pressure cups.
  • EPDM rubber cups and boots: made with high-quality EPDM rubber for long-lasting sealing performance.
  • Bleeder screw included: ships with a bleeder screw; a bleeder screw cap is not included.
  • Specs: 0.625 in inside diameter with an M10 x 1.0 brake-line inlet thread. Country of origin: China.

Sold individually (package contains 1). The listed applications use two per vehicle (one per rear wheel); replacing both sides together as a matched pair is best practice for even, balanced braking.

Interchange: 18E259 · 784-04204 · 78404204 · 84-04204 · 8404204 · 85-14005 · 8514005 · W906578 · 101-1142 · 1011142 · W-51204 · W51204 · 072-8511 · 0728511 · 33963 · 134.42204 · 13442204 · 135.42204 · 13542204 · WC13963 · 375-67017 · 37567017 · 4410060A10 · 4410060A11 · 4410060A12 · 4410060A14 · 2037685 · WC37685 · F114197 · WC114197. Manufacturer part number W37685.

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

18E259, 784-04204, 84-04204, 85-14005, W906578, 101-1142, W-51204, 072-8511, 33963, 134.42204, 135.42204, WC13963, 375-67017, 4410060A10, 4410060A11, 4410060A12, 4410060A14, 2037685, WC37685, F114197, WC114197

Frequently Asked Questions

What does this wheel cylinder do?

It's a rear drum brake wheel cylinder that converts hydraulic brake-line pressure into the outward force that pushes the brake shoes against the drum.

What are signs my wheel cylinder may need replacing?

Signs may include brake fluid seeping behind the drum, dampness on the shoes, a soft or sinking pedal, or uneven braking. Diagnose the cause before replacing, as these can have other sources.

How many do I need and how is it sold?

It's sold individually (one per package). The listed applications use two (one per rear wheel); replacing both sides together as a matched pair is recommended for even braking.

Is a bleeder screw included?

Yes, a bleeder screw is included. A bleeder screw cap is not included.

Will this fit my vehicle?

It's a direct-fit replacement for the 1987-1990 Nissan Pulsar NX and 1987-1990 Nissan Sentra. Check the Buyer's Guide tab to confirm your vehicle.