Dorman M630618 Brake Master Cylinder

Reliable Brake Master Cylinder for Ford Escape and Mercury Mariner

The Dorman M630618 Brake Master Cylinder is engineered to restore proper brake hydraulics in your Ford Escape or Mercury Mariner. Designed with precision, this master cylinder includes a reservoir and sensor to ensure consistent brake fluid management and system monitoring.

• Master cylinder bore diameter of 1.063 inches for accurate hydraulic pressure
• Constructed from durable aluminum material for corrosion resistance
• Includes reservoir for brake fluid storage
• Equipped with a sensor for brake system monitoring
• Two outlets with rearward outlet size M14 x 1.5 and thread pitch 1.5

Product Details and Specifications

This Dorman brake master cylinder (part number M630618) is specifically designed for brake hydraulics systems in Ford Escape and Mercury Mariner models. The aluminum construction provides strength and longevity while resisting corrosion from brake fluid exposure. The 1.063-inch bore diameter ensures proper hydraulic pressure generation for effective braking performance. Featuring two outlets, including a secondary outlet with a 14 mm thread diameter and a rearward outlet sized M14 x 1.5, this master cylinder integrates seamlessly with the vehicle’s brake lines. The included reservoir allows for adequate brake fluid storage, and the built-in sensor supports brake system diagnostics and safety monitoring.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates brake fluid leaks from a failing reservoir or seals
• Resolves brake warning light issues related to sensor malfunction
• Improves brake pedal feel and responsiveness in Ford Escape and Mercury Mariner
• Replaces corroded or damaged aluminum master cylinders in brake hydraulic systems

Installation Notes and Tips

Installation of the Dorman M630618 brake master cylinder requires proper brake fluid handling and bleeding procedures to avoid air in the brake lines. Ensure compatibility with your specific Ford Escape or Mercury Mariner model year before installation. Since mounting hardware is not included, retain original hardware or source appropriate fasteners. Verify sensor connections are secure to maintain brake system monitoring functionality.

Quality Assurance and Warranty

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