Raybestos MC390938 Brake Master Cylinder

Reliable Brake Master Cylinder for Subaru Outback

The Raybestos Element3; New Brake Master Cylinder MC390938 is engineered to restore precise brake hydraulics for your Subaru Outback. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

• Compatible with Subaru Outback models
• Constructed from lightweight, corrosion-resistant aluminum
• Features a 1.060-inch bore size for optimal hydraulic pressure
• Includes 2 mounting holes with 0.343-inch diameter for secure installation
• Equipped with 2 ports, both with M12x1 thread size

About the Raybestos Element3; New Product Line

The Element3; New line by Raybestos focuses on delivering reliable brake hydraulics components with modern materials and precise engineering. This brake master cylinder MC390938 is part of that line, offering improved durability and fitment accuracy for Subaru Outback vehicles. The use of aluminum material helps reduce weight while maintaining strength and corrosion resistance.

Detailed Product Description

This brake master cylinder is designed specifically for Subaru Outback models, ensuring compatibility and proper function within the vehicle's brake hydraulic system. The 1.060-inch bore size provides the correct hydraulic pressure needed for effective braking response. With two mounting holes sized at 0.343 inches in diameter, installation is straightforward and secure. Both primary and secondary ports feature M12x1 threading, matching factory specifications for brake line connections.

Common Issues Addressed by This Master Cylinder

• Brake pedal sinking or sponginess due to master cylinder wear
• Brake fluid leaks around the master cylinder ports or mounting area
• Reduced braking efficiency caused by internal seal failure
• Inconsistent brake pressure affecting vehicle stopping distance
• Replacement of a damaged or corroded original master cylinder

Installation Notes and Tips

• Ensure the vehicle is properly supported and brake system depressurized before removal
• Use the correct tools to avoid damaging the M12x1 threaded ports
• Bleed the brake system thoroughly after installation to remove air
• Verify mounting hole alignment with the 0.343-inch diameter holes for a secure fit
• Check for leaks and proper pedal feel before driving

Quality Assurance and Warranty

Raybestos manufactures the MC390938 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction offers corrosion resistance and durability under normal operating conditions. While specific warranty details should be confirmed at purchase, Raybestos products typically include coverage against defects in materials and workmanship.