Dorman M390286 Brake Master Cylinder

Reliable Brake Master Cylinder for Toyota Paseo and Tercel

The Dorman M390286 brake master cylinder is engineered to restore proper brake hydraulics in Toyota Paseo and Tercel models. Designed with precision, this master cylinder includes a reservoir and sensor to ensure consistent brake fluid management and system monitoring.

• Master cylinder bore diameter: 0.813 inches for accurate hydraulic pressure
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir for brake fluid storage
• Equipped with sensor for brake system monitoring
• Two outlets with rearward outlet size M10 x 1.0 and thread pitch 1.0

Product Details and Specifications

The Dorman M390286 brake master cylinder is designed specifically for Toyota Paseo and Tercel vehicles, ensuring compatibility and reliable performance. Its aluminum construction provides strength and resistance to corrosion, extending the service life of the component. The 0.813-inch bore diameter is calibrated to deliver precise hydraulic pressure to the brake system. This master cylinder includes a reservoir to maintain proper brake fluid levels and a sensor to monitor system status, which helps maintain safety and functionality. The unit features two outlets, with a secondary outlet thread diameter of 10 mm and a rearward outlet size of M10 x 1.0, matching OEM specifications for seamless integration.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates brake fluid leaks from the master cylinder reservoir
• Resolves brake pedal sinking or sponginess caused by internal seal failure
• Replaces faulty brake fluid level sensor for accurate system alerts
• Addresses inconsistent brake performance in Toyota Paseo and Tercel models

Installation Notes and Tips

Installation of the Dorman M390286 brake master cylinder requires proper brake system bleeding to remove air and ensure optimal hydraulic function. Verify that the mounting surface is clean and free of debris before installation. Since mounting hardware is not included, retain original fasteners or acquire appropriate replacements. Confirm thread pitch and outlet sizes match vehicle specifications to avoid leaks. It is recommended to inspect brake lines and related components during installation for overall system integrity.

Quality Assurance and Warranty

Dorman manufactures the M390286 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. Consult product documentation or supplier for exact warranty terms.