Dorman M390329 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder for Ford Windstar

The Dorman M390329 brake master cylinder is designed specifically for Ford Windstar models, providing reliable brake hydraulics performance. This master cylinder features an aluminum construction and includes a reservoir and sensor to ensure proper brake system function.

• Master cylinder bore diameter: 1.063 inches
• Constructed from durable aluminum material
• Includes reservoir and sensor for integrated brake system monitoring
• Three outlets with rearward outlet size M12 x 1.0
• Secondary outlet thread diameters: M12 x 1.0 and 3/8-24
• Mounting hardware not included

Detailed Product Description

The Dorman M390329 brake master cylinder is engineered to meet the hydraulic braking needs of Ford Windstar vehicles. Its aluminum body offers corrosion resistance and strength, while the 1.063-inch bore diameter ensures proper fluid displacement for effective braking. The included reservoir allows for fluid storage and monitoring, and the integrated sensor supports brake system diagnostics. With three outlets, including a rearward outlet sized M12 x 1.0 and secondary outlets with M12 x 1.0 and 3/8-24 thread diameters, this master cylinder is compatible with the specific brake line configurations found on the Ford Windstar.

Common Applications and Issues Addressed

• Restores proper brake fluid pressure and pedal feel
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Resolves brake warning light activation due to sensor faults
• Addresses inconsistent braking performance or spongy brake pedal
• Supports brake system repairs requiring reservoir replacement

Installation Notes and Tips

• Ensure compatibility with Ford Windstar model year before installation
• Brake system must be properly bled after installation to remove air
• Mounting hardware is not included; reuse existing hardware or source separately
• Handle brake fluid carefully to avoid contamination and damage to painted surfaces
• Verify sensor connections for proper brake warning system operation

Quality Assurance and Warranty

Dorman brake master cylinders are manufactured to meet or exceed OEM specifications for fit and function. The M390329 part undergoes rigorous quality control to ensure durability and reliable performance in Ford Windstar brake systems. Warranty coverage details should be confirmed through the product documentation or supplier.