Dorman W32091 Drum Brake Wheel Cylinder - Front Left

Reliable Drum Brake Wheel Cylinder for Pontiac Vehicles

The Dorman W32091 drum brake wheel cylinder is engineered to restore proper braking function for select Pontiac models. Designed specifically for the Bonneville, Catalina, and Grand Prix, this component ensures precise hydraulic pressure in your drum brake system.

Key Features of Dorman W32091 Drum Brake Wheel Cylinder

• Includes bleeder screw for easy brake fluid bleeding
• Cast iron construction for durability and corrosion resistance
• Bore diameter of 1.188 inches for accurate fit and function
• Brake line inlet thread diameter of 0.437 inches with 7/16-20 thread size
• Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W32091 drum brake wheel cylinder is crafted from cast iron, providing strength and longevity under demanding braking conditions. Its bore diameter of 1.188 inches matches original equipment specifications, ensuring consistent hydraulic pressure and smooth brake operation. The included bleeder screw simplifies maintenance by allowing efficient removal of air from the brake lines. The brake line inlet thread diameter of 0.437 inches and 7/16-20 thread size guarantee compatibility with factory brake lines on Pontiac Bonneville, Catalina, and Grand Prix models.

Common Applications and Issues Addressed

• Restores braking performance in Pontiac Bonneville, Catalina, and Grand Prix drum brake systems
• Replaces leaking or seized wheel cylinders causing brake fluid loss
• Eliminates spongy brake pedal feel due to air in brake lines
• Addresses uneven brake application or dragging brakes
• Prevents brake failure related to worn or damaged wheel cylinders

Installation Notes and Tips

• Ensure brake system is depressurized before removal
• Use the included bleeder screw to properly bleed air from the brake lines after installation
• Inspect brake shoes and hardware for wear during replacement
• Verify thread compatibility with existing brake lines (7/16-20 thread size)
• Follow vehicle-specific service manual for torque specifications and procedures

Quality Assurance and Warranty Information

Dorman manufactures the W32091 drum brake wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides reliable performance and resistance to corrosion. This part is backed by Dorman's limited warranty, ensuring coverage against defects in material and workmanship under normal use.