Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37575

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$24.99
MPN: W37575
Item Package Quantity: 1
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Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37575
Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37575
$24.99

Keep hydraulic pressure reaching your rear drum brakes with the Dorman - First Stop Drum Brake Wheel Cylinder W37575. It drops in as a direct-fit replacement for the 1985-1987 Mazda 626, taking the place of a worn or leaking original wheel cylinder at the rear.

  • Rear position: cataloged for the rear drum brakes on the listed application.
  • Hydraulic actuation: brake-line pressure enters the cylinder and pushes its pistons outward, forcing the brake shoes against the drum.
  • Direct-fit replacement: installs in place of the original wheel cylinder for the listed vehicle.
  • Sold individually: this listing is for one wheel cylinder; replacing both sides together is good practice for balanced rear braking.

Common signs a wheel cylinder may need replacing include brake fluid seeping onto the shoes, backing plate, or inside of the drum, a low or spongy brake pedal, and uneven rear braking. Because these symptoms can have other causes, diagnose the system before replacing parts. After installation, bleed the brake system and confirm proper operation. If a failed wheel cylinder is the cause of your leak or soft pedal, this part replaces it.

Interchange: 18E199 · 784-14202 · 78414202 · 784-18502 · 78418502 · 84-14202 · 8414202 · W906518 · 101-1261 · 1011261 · W-53202 · W53202 · 072-8346 · 0728346 · 33875 · 134.45202 · 135.45202 · WC13875 · 375-80012 · 37580012 · G03026610 · 2037575 · WC37575 · F108203 · WC108203 · Manufacturer part number W37575

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

18E199, 784-14202, 784-18502, 84-14202, W906518, 101-1261, W-53202, 072-8346, 33875, 134.45202, 135.45202, WC13875, 375-80012, G03026610, 2037575, WC37575, F108203, WC108203

Frequently Asked Questions

Where is this wheel cylinder located?

It's cataloged for the rear drum brakes on the 1985-1987 Mazda 626.

What does a drum brake wheel cylinder do?

It converts brake-line hydraulic pressure into outward piston movement that forces the brake shoes against the drum.

What vehicle does the W37575 fit?

It's a direct-fit replacement for the 1985-1987 Mazda 626. Check the Buyer's Guide tab to confirm fitment for your vehicle.

How do I know if my wheel cylinder is failing?

Signs include brake fluid on the shoes, backing plate, or drum, a low or spongy brake pedal, and uneven rear braking. Diagnose the cause before replacing.

Is this sold as a pair?

No, it's sold individually. Replacing both rear wheel cylinders together is good practice for balanced braking.