Dorman M390289 Brake Master Cylinder

Reliable Brake Master Cylinder for Toyota Tacoma

The Dorman M390289 brake master cylinder is engineered to provide consistent hydraulic pressure for your Toyota Tacoma's braking system. Designed with precision, this master cylinder ensures reliable brake performance and safety on the road.

• Master cylinder bore diameter: 1 inch for optimal hydraulic control
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir for fluid storage and monitoring
• Equipped with a sensor to support brake system diagnostics
• Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0

Product Details and Specifications

The Dorman M390289 brake master cylinder features a 1-inch bore diameter, which is critical for maintaining proper hydraulic pressure in the brake system of your Toyota Tacoma. Its aluminum construction offers strength and resistance to corrosion, extending the service life of the component. The included reservoir allows for efficient brake fluid storage and monitoring, while the integrated sensor supports electronic brake system feedback. This master cylinder has two outlets, with a secondary outlet thread diameter of 10 mm and a rearward outlet size of M10 x 1.0, ensuring compatibility with the brake hydraulics of the Tacoma. The thread pitch of 1.0 facilitates secure and leak-free connections.

Compatible Applications and Common Uses

• Replacement for worn or leaking brake master cylinders on Toyota Tacoma models
• Restores proper brake fluid pressure and pedal feel
• Addresses issues such as brake fluid leaks or spongy brake pedal
• Supports brake system sensor functionality for accurate diagnostics
• Helps maintain overall brake system safety and performance

Installation Notes and Tips

When installing the Dorman M390289 brake master cylinder on your Toyota Tacoma, ensure the brake fluid reservoir is properly filled and free of contaminants. Bleed the brake system thoroughly to remove air and achieve optimal hydraulic pressure. Verify that the sensor connections are secure to maintain accurate brake system monitoring. Note that mounting hardware is not included and may need to be sourced separately.

Quality Assurance and Warranty Information

Dorman manufactures the M390289 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system operation. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.