Dorman W37046 Drum Brake Wheel Cylinder - Front Left

Reliable Drum Brake Wheel Cylinder for Pontiac Vehicles

The Dorman W37046 drum brake wheel cylinder is engineered to restore proper braking function for select Pontiac models. Designed with durable cast iron construction and precise dimensions, this wheel cylinder ensures consistent hydraulic pressure for safe and effective braking performance.

Key Features of Dorman W37046 Drum Brake Wheel Cylinder

• Includes bleeder screw for easy brake system bleeding
• Brake line inlet thread diameter: 0.437 inches
• Brake component inlet thread size: 7/16-24
• Cast iron casting material for strength and durability
• Bore diameter measures 1.188 inches for accurate fit
• Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W37046 is a drum brake wheel cylinder specifically designed for Pontiac Bonneville, Catalina, Grand Prix, and Parisienne models. Its cast iron construction provides reliable resistance to wear and corrosion, maintaining hydraulic integrity under demanding conditions. The included bleeder screw simplifies brake fluid bleeding, helping to maintain optimal brake system performance. With a bore diameter of 1.188 inches and a brake line inlet thread diameter of 0.437 inches, this wheel cylinder matches original equipment specifications to ensure proper fit and function.

Common Brake Issues Addressed by This Wheel Cylinder

• Brake fluid leaks from worn or damaged wheel cylinders
• Reduced braking efficiency due to hydraulic pressure loss
• Uneven brake shoe wear caused by cylinder malfunction
• Spongy or soft brake pedal feel
• Brake drag or sticking caused by seized wheel cylinder pistons

Installation Notes and Tips

• Ensure compatibility with Pontiac Bonneville, Catalina, Grand Prix, and Parisienne models before installation
• Use proper tools to avoid damaging the bleeder screw or brake line threads
• Bleed the brake system thoroughly after installation to remove air and restore hydraulic pressure
• Inspect brake shoes and hardware for wear and replace if necessary during installation

Quality Assurance and Warranty Information

Dorman manufactures the W37046 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise machining contribute to long service life and dependable braking performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship to provide confidence in product reliability.