Raybestos MC391374 Brake Master Cylinder

Reliable Brake Master Cylinder for Lexus and Toyota Vehicles

The Raybestos Element3; New Brake Master Cylinder MC391374 is engineered to provide consistent hydraulic pressure for your braking system. Designed specifically for select Lexus and Toyota models, this aluminum master cylinder ensures precise control and durability.

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.354-inch diameter for secure installation
• 0.750-inch bore size for optimal hydraulic performance
• Equipped with two ports featuring M10x1 thread size for compatibility
• Compatible with Lexus Highlander, RX450h, and RX450hL models

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components with modern materials and precise engineering. This brake master cylinder is part of that line, offering enhanced corrosion resistance and consistent bore sizing to maintain proper brake fluid pressure and vehicle safety.

Detailed Product Description

This brake master cylinder MC391374 is crafted from aluminum, providing a balance of strength and weight reduction. It features two mounting holes, each with a diameter of 0.354 inches, ensuring a secure fit in the brake system assembly. The 0.750-inch bore size is designed to deliver the correct hydraulic pressure needed for effective braking response. Both primary and secondary ports use M10x1 threading, compatible with standard brake line fittings on Lexus Highlander, RX450h, and RX450hL models. This part number MC391374 is engineered to meet the specifications required for these vehicles, maintaining brake system integrity and performance.

Common Applications and Issues Addressed

• Restores proper hydraulic pressure in brake systems
• Replaces worn or leaking master cylinders causing brake fluid loss
• Eliminates spongy or unresponsive brake pedal feel
• Addresses brake system failure due to internal seal wear
• Ensures consistent brake fluid flow for hybrid Lexus RX450h models

Installation Notes and Tips

When installing the Raybestos MC391374 brake master cylinder, ensure the mounting holes align precisely with the vehicle’s brake booster or firewall. Use compatible brake lines with M10x1 threaded fittings for secure connections. Bleed the brake system thoroughly after installation to remove air and verify proper hydraulic pressure. It is recommended to inspect related brake components during installation for optimal system performance.

Quality Assurance and Warranty

Raybestos manufactures the Element3; New brake master cylinder to meet or exceed OEM standards. The aluminum construction offers corrosion resistance and durability under normal operating conditions. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or authorized sources for exact warranty terms.