Dorman M390298 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford Taurus and Mercury Sable

The Dorman M390298 brake master cylinder is designed to restore proper brake hydraulics in select Ford and Mercury vehicles. Engineered with an aluminum body and integrated reservoir, this master cylinder ensures consistent brake fluid delivery and pressure for safe stopping performance.

• Master cylinder bore diameter: 1 inch
• Constructed from durable aluminum material
• Includes reservoir and sensor for fluid level monitoring
• Two outlet ports with rearward outlet size M10 x 1.0 and secondary outlet thread diameter M12 x 1.0
• Thread pitch of 1.0 for secure fitting
• Package contains the master cylinder only; mounting hardware not included

Product Details and Specifications

This Dorman brake master cylinder (part number M390298) is specifically compatible with Ford Taurus and Mercury Sable models. The aluminum construction provides corrosion resistance and long service life. The included reservoir allows for proper brake fluid storage, while the integrated sensor helps monitor fluid levels to alert drivers of low brake fluid conditions. Featuring two outlets, this master cylinder supports dual-circuit brake systems, with precise thread sizes (M10 x 1.0 rearward outlet and M12 x 1.0 secondary outlet) to ensure proper hydraulic connections.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or leaking master cylinder
• Eliminates brake fluid leaks from damaged or corroded master cylinder bodies
• Resolves brake pedal sinking or sponginess caused by internal seal failure
• Replaces faulty brake fluid reservoir or sensor components integrated in the master cylinder
• Addresses brake system warning lights related to fluid level sensor issues

Installation Notes and Tips

Installation of the Dorman M390298 brake master cylinder requires proper brake system bleeding to remove air and ensure optimal hydraulic pressure. Mounting hardware is not included, so reuse existing hardware or acquire appropriate fasteners. Verify thread pitch and outlet sizes to match vehicle brake lines. It is recommended to inspect brake lines and related components during installation for any signs of wear or damage.

Quality Assurance and Warranty

Dorman brake master cylinders are manufactured to meet or exceed OEM specifications for fit, form, and function. The M390298 part undergoes rigorous quality control to ensure reliable performance in Ford Taurus and Mercury Sable vehicles. Warranty coverage details can be obtained from the product documentation or manufacturer.