Dorman W37839 Drum Brake Wheel Cylinder - Rear Left

Reliable Drum Brake Wheel Cylinder for Mazda B2200, B2600, and MPV

The Dorman W37839 drum brake wheel cylinder is engineered to restore proper braking function for select Mazda models. Designed with durable cast iron and precise specifications, this component ensures consistent hydraulic pressure in your vehicle's drum brake system.

• Includes bleeder screw for easy brake fluid bleeding
• Constructed from cast iron for strength and longevity
• Bore diameter of 0.688 inches for accurate fitment
• Brake component inlet thread size: (2) M10 x 1.0
• Thread diameter M10 with a 1.0 thread pitch
• Package contains one drum brake wheel cylinder

Technical Details and Specifications

The Dorman W37839 wheel cylinder features a cast iron casting material that provides durability under high-pressure braking conditions. Its bore diameter of 0.688 inches is designed to match the hydraulic requirements of the drum brake system on Mazda B2200, B2600, and MPV models. The component includes a bleeder screw to facilitate brake fluid removal during installation or maintenance, although it does not come with a bleeder screw cap. The brake component inlet thread size is (2) M10 x 1.0, with a thread diameter of M10 and a thread pitch of 1, ensuring compatibility with the original brake lines and fittings.

Compatible Vehicles and Applications

This drum brake wheel cylinder is compatible with the following Mazda vehicles:

• Mazda B2200
• Mazda B2600
• Mazda MPV

It is designed to replace worn or leaking wheel cylinders in the drum brake system, restoring proper hydraulic pressure and brake performance.

Common Issues Addressed by This Wheel Cylinder

• Brake fluid leaks from the wheel cylinder
• Reduced braking efficiency due to worn seals
• Spongy or soft brake pedal feel
• Uneven brake shoe wear caused by cylinder malfunction
• Brake drag or sticking due to cylinder corrosion

Installation Notes and Tips

When installing the Dorman W37839 drum brake wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air and maintain hydraulic integrity. Verify thread compatibility with existing brake lines using the M10 x 1.0 thread size. Inspect brake shoes and hardware for wear and replace as necessary to ensure optimal braking performance. Follow manufacturer torque specifications for mounting bolts and fittings.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The W37839 drum brake wheel cylinder undergoes rigorous quality control to ensure reliable operation. Please refer to Dorman's warranty policy for specific coverage details.