Dorman W37631 Drum Brake Wheel Cylinder - Rear

Overview of Dorman Drum Brake Wheel Cylinder W37631

The Dorman W37631 drum brake wheel cylinder is designed specifically for Toyota Pickup models, providing reliable brake hydraulics performance. This component is engineered with cast iron for durability and includes a bleeder screw for easy maintenance.

• Compatible with Toyota Pickup models
• Cast iron casting material for strength and longevity
• Bore diameter of 0.813 inches for precise fit
• Includes bleeder screw for brake system bleeding
• Brake line inlet thread diameter of 10 mm with M10 x 1.0 thread size and 1.0 thread pitch
• Package contains one drum brake wheel cylinder

Technical Details and Specifications

The Dorman W37631 drum brake wheel cylinder features a robust cast iron construction that ensures resistance to wear and corrosion under typical operating conditions. The bore diameter measures 0.813 inches, which is critical for proper piston movement and brake fluid pressure management. The brake line inlet thread diameter is 10 mm, with an M10 x 1.0 thread size and a 1.0 thread pitch, ensuring compatibility with the brake lines on Toyota Pickup vehicles. This part includes a bleeder screw to facilitate the removal of air from the brake system, although it does not come with a bleeder screw cap.

Application and Common Issues Addressed

• Restores proper hydraulic pressure in Toyota Pickup drum brakes
• Resolves brake fluid leaks from worn or damaged wheel cylinders
• Eliminates spongy or unresponsive brake pedal feel
• Prevents uneven brake shoe wear caused by cylinder malfunction
• Addresses brake dragging or sticking due to cylinder piston issues

Installation Notes and Tips

When installing the Dorman W37631 wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely lifted. Use the included bleeder screw to properly bleed the brake system after installation to remove any trapped air. Verify that the brake line inlet threads match the M10 x 1.0 specification to avoid cross-threading. Inspect brake shoes and hardware for wear during replacement to maintain optimal braking performance.

Quality Assurance and Warranty Information

Dorman manufactures the W37631 wheel cylinder to meet or exceed OEM specifications for Toyota Pickup brake hydraulics. The cast iron construction provides durability and consistent performance. This part is backed by Dorman's standard warranty coverage, ensuring reliability and customer confidence in the product's quality.