Raybestos MC390978 Brake Master Cylinder

Reliable Brake Master Cylinder for Chrysler and Dodge Vehicles

The Raybestos Element3; New Brake Master Cylinder MC390978 is engineered to restore precise brake hydraulics in Chrysler 300, Dodge Charger, and Dodge Magnum models. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

• Constructed from lightweight, corrosion-resistant aluminum
• Features a 1.000 inch bore size for accurate hydraulic pressure
• Includes two mounting holes with a diameter of 0.354 inches for secure installation
• Primary and secondary port threads sized M12x1 for compatibility with brake lines
• Compatible with Chrysler 300, Dodge Charger, and Dodge Magnum models

About the Raybestos Element3; New Product Line

The Element3; New line by Raybestos focuses on delivering reliable brake hydraulics components with precise engineering and quality materials. This brake master cylinder is part of that line, offering a balance of durability and performance tailored for specific Chrysler and Dodge vehicles. The use of aluminum material and standardized port threading reflects the line's commitment to fit and function.

Product Details and Specifications

This brake master cylinder (part number MC390978) is designed with a 1.000 inch bore size, which is critical for maintaining proper hydraulic pressure in the brake system. The aluminum construction provides resistance to corrosion and reduces overall weight compared to traditional cast iron units. It mounts securely using two holes, each with a diameter of 0.354 inches, ensuring a stable fit. Both the primary and secondary ports use M12x1 threading, compatible with standard brake line fittings on Chrysler and Dodge models.

Common Applications and Problem Resolution

• Restores brake hydraulic pressure in Chrysler 300, Dodge Charger, and Dodge Magnum
• Replaces worn or leaking master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Fixes brake system failures related to internal cylinder wear
• Improves overall brake system reliability and safety

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain hydraulic integrity. Verify that mounting holes align correctly with the vehicle’s firewall or mounting bracket. Use compatible brake lines with M12x1 threaded fittings for secure connections. It is recommended to inspect related brake components during installation for optimal system performance.

Quality Assurance and Warranty

Raybestos manufactures the MC390978 brake master cylinder to meet or exceed OEM specifications for Chrysler and Dodge vehicles. The Element3; New line undergoes rigorous quality control to ensure durability and consistent performance. Warranty details should be confirmed with the product documentation or supplier.