Raybestos MC390678 Brake Master Cylinder

Overview of Raybestos Element3; New Brake Master Cylinder

The Raybestos Element3; New Brake Master Cylinder MC390678 is engineered for reliable brake hydraulics performance in Ford Focus vehicles. Designed with precision, this aluminum master cylinder ensures consistent braking pressure and durability for your Ford Focus.

• Constructed from durable aluminum for lightweight strength
• Two mounting holes with 0.335-inch diameter for secure installation
• 0.938-inch bore size optimized for brake fluid control
• Four ports with M10x1 thread size for primary and secondary connections
• Compatible specifically with Ford Focus models

Detailed Product Features and Specifications

This Raybestos brake master cylinder, part number MC390678, features an aluminum body that offers corrosion resistance and long service life. The 0.938-inch bore size is designed to provide precise hydraulic pressure for effective braking response. It includes two mounting holes, each with a diameter of 0.335 inches, ensuring a secure fitment on the brake system. The master cylinder has four ports, with both primary and secondary ports threaded M10x1, allowing for proper brake line connections. This part is engineered to meet the specific brake hydraulic requirements of Ford Focus vehicles, ensuring compatibility and reliable operation.

About the Element3; New Product Line

The Element3; New line by Raybestos focuses on delivering quality brake hydraulics components that meet OEM specifications. This product line emphasizes material durability and precise engineering, which is evident in the MC390678 master cylinder. The use of aluminum and carefully designed port threading supports consistent brake system performance and ease of installation.

Common Applications and Problem Solving

• Restores proper hydraulic pressure in Ford Focus brake systems
• Replaces worn or leaking master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Eliminates brake fluid contamination by providing a sealed, corrosion-resistant unit
• Ensures secure mounting and connection with correct hole size and port threading

Installation Notes and Tips

When installing the Raybestos MC390678 brake master cylinder, ensure the mounting holes align precisely with the vehicle’s brake booster or firewall. Use the specified 0.335-inch diameter mounting holes for proper fitment. Confirm that the M10x1 threaded ports match the brake line fittings to avoid leaks. Bleed the brake system thoroughly after installation to remove air and restore optimal brake pedal feel. It is recommended to inspect related brake components during installation for overall system integrity.

Quality Assurance and Warranty

Raybestos manufactures the MC390678 brake master cylinder to meet stringent quality standards, ensuring reliable performance in Ford Focus brake systems. The aluminum construction provides corrosion resistance and durability. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always verify warranty terms with the product documentation or supplier.