Dorman - First Stop Drum Brake Wheel Cylinder W32091
Dorman - First Stop Drum Brake Wheel Cylinder W32091 - view 2
Dorman - First Stop Drum Brake Wheel Cylinder W32091 - view 3
Dorman - First Stop Drum Brake Wheel Cylinder W32091
Dorman - First Stop Drum Brake Wheel Cylinder W32091 - view 2
Dorman - First Stop Drum Brake Wheel Cylinder W32091 - view 3

Dorman - First Stop Drum Brake Wheel Cylinder P/N:W32091

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$63.99
MPN: W32091
Item Package Quantity: 1

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Dorman - First Stop Drum Brake Wheel Cylinder P/N:W32091
Dorman - First Stop Drum Brake Wheel Cylinder P/N:W32091
$63.99

Move hydraulic pressure to your drum brake shoes with the Dorman - First Stop Drum Brake Wheel Cylinder W32091. Mounted in the front-left position, this wheel cylinder converts brake-line hydraulic pressure into the outward force that pushes the brake shoes against the drum. It installs as a direct-fit replacement engineered to match the original cylinder's fit and function on the listed classic Pontiac applications: the 1960-1964 Bonneville, Catalina and Star Chief, plus the 1962-1964 Grand Prix (All engines). Replacing the wheel cylinder while servicing drum brakes is a fast, straightforward way to renew hydraulic performance.

  • Cast-iron body: with a 1.188 in inside-diameter bore that is surface-tested for an optimum sealing surface for the pressure cups.
  • EPDM rubber cups and boots: high-quality sealing components built for long-lasting performance.
  • 7/16-20 inlet thread (7/16 in thread diameter) for the brake-line connection.
  • Bleeder screw included; bleeder screw cap not included.

Manufactured and tested for quality assurance. If a leaking or seized wheel cylinder is causing a soft pedal or fluid seepage at the drum, this replaces it. Country of origin: China.

Interchange: W906150 · 134.62075 · WC252160 · 375-52011 · 37552011 · 5456977 · WC32091
Manufacturer part number W32091.

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

W906150, 134.62075, WC252160, 375-52011, 5456977, WC32091

Frequently Asked Questions

Where does this wheel cylinder mount?

It is cataloged for the front-left position on the listed applications. Wheel cylinders are sold individually, so order the additional units you need.

Is a bleeder screw included?

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

What is the bore size and inlet thread?

It has a 1.188 in inside-diameter bore with a 7/16-20 inlet thread (7/16 in thread diameter) for the brake-line connection.

Which vehicles does W32091 fit?

The 1960-1964 Pontiac Bonneville, Catalina and Star Chief, plus the 1962-1964 Pontiac Grand Prix (All engines). See the Buyer's Guide tab to confirm your vehicle.

How do I know if my wheel cylinder needs replacing?

Signs may include brake fluid leaking at the drum, a soft or sinking pedal, or shoes that do not apply evenly. Diagnose the cause before replacing.

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