Dorman W37047 Drum Brake Wheel Cylinder - Front Right

Reliable Drum Brake Wheel Cylinder for Pontiac Vehicles

The Dorman W37047 drum brake wheel cylinder is engineered to restore proper braking function in select Pontiac models. Designed with durable cast iron and precise bore dimensions, this component ensures consistent hydraulic pressure for safe stopping performance.

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

Detailed Product Description

The Dorman W37047 drum brake wheel cylinder is specifically designed for use in Pontiac Bonneville, Catalina, Grand Prix, and Parisienne models. Its cast iron casting material provides reliable resistance to wear and corrosion, essential for maintaining brake system integrity. The bore diameter of 1.188 inches ensures proper piston movement within the cylinder, while the 0.437-inch brake line inlet thread diameter and 7/16-20 brake component inlet thread size allow for secure hydraulic line connections. The included bleeder screw facilitates efficient removal of air from the brake lines, helping maintain consistent brake pedal feel and performance.

Common Applications and Problem Resolution

• Restores braking function in Pontiac Bonneville, Catalina, Grand Prix, and Parisienne models
• Addresses brake fluid leaks from worn or damaged wheel cylinders
• Eliminates spongy brake pedal caused by air in brake lines
• Replaces seized or sticking wheel cylinders that impair brake operation
• Improves overall brake system reliability and safety

Installation Notes and Tips

When installing the Dorman W37047 drum brake wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove any trapped air. Verify that the brake line inlet threads match the vehicle’s specifications to avoid leaks. Inspect brake shoes and hardware for wear during installation, as these components often require replacement simultaneously for optimal brake performance.

Quality Assurance and Warranty

Dorman manufactures the W37047 wheel cylinder to meet or exceed OEM specifications, using cast iron for durability and long service life. While specific warranty details are not provided, Dorman products typically undergo rigorous quality control to ensure reliable performance in Pontiac Bonneville, Catalina, Grand Prix, and Parisienne brake systems.