Dorman - First Stop Drum Brake Wheel Cylinder P/N:W37677

Push the rear brake shoes firmly against the drum every time you press the pedal with the Dorman drum brake wheel cylinder from the Dorman - First Stop line, part number W37677. It fits many vehicles, among them the 1995-2002 Chevrolet Cavalier, 1992-2001 Chevrolet Lumina and 1995-1999 Chevrolet Monte Carlo. See the Buyer's Guide tab for the full list.

Dorman engineered this direct-replacement rear wheel cylinder to match the original unit's fit, function and performance on the listed applications, and it is manufactured and tested for quality assurance. When you press the brake pedal, fluid pressure from the master cylinder drives the pistons outward and forces the shoes against the drum.

• Direct replacement: designed to be a direct match for the original drum brake wheel cylinder on the listed applications.
• Cost-effective service step: replacing the wheel cylinder while the drum brakes are apart helps maintain brake performance.
• EPDM rubber cups and boots: the pressure cups and boots are made from high-quality EPDM rubber.
• Surface-tested bores: the 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, fluid-soaked shoes, a soft or low brake pedal, and a dropping fluid level. Diagnose the cause before replacing parts, and bleed the brake system after installation.

Interchange: 172-1539 · 172-1558 · 784-36050 · 84-36050 · 101-1495 · W-82050 · 134.62050 · 135.62050 · 375-45012
1721539 · 1721558 · 78436050 · 8436050 · 1011495 · W82050 · 13462050 · 13562050 · 37545012 · 18E1270 · 18E256 · W906575 · 33936 · 34084 · WC13936 · WC14084 · 18012582 · 18020210 · 18029869 · 18029943 · 112341 · WC370265 · F112341 · F129240 · WC112341 · WC129240