Raybestos MC391111 Brake Master Cylinder

Reliable Brake Master Cylinder for Jeep Liberty

The Raybestos Element3; New Brake Master Cylinder MC391111 is engineered to restore precise brake hydraulics for your Jeep Liberty. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance and safety.

• Compatible with Jeep Liberty models
• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.354-inch diameter for secure installation
• 1.060-inch bore size for optimal hydraulic pressure
• Primary port thread size: 7/16"-24
• Secondary port thread size: 3/8"-24

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 durability and fitment accuracy for Jeep Liberty vehicles. The use of aluminum material reduces weight while maintaining strength, contributing to improved vehicle braking response.

Detailed Product Description

The MC391111 brake master cylinder is designed specifically for Jeep Liberty models, featuring two mounting holes with a diameter of 0.354 inches to ensure a secure and stable fit. Its 1.060-inch bore size is calibrated to provide the correct hydraulic pressure needed for effective brake system operation. The aluminum construction offers resistance to corrosion and heat, which helps maintain consistent performance over time. Thread specifications for the primary and secondary ports (7/16"-24 and 3/8"-24 respectively) match OEM standards, facilitating straightforward integration with existing brake lines.

Common Applications and Issues Addressed

• Restores brake hydraulic pressure in Jeep Liberty vehicles
• Replaces worn or leaking master cylinders causing brake fluid loss
• Eliminates spongy or unresponsive brake pedal feel
• Fixes brake system failure due to internal cylinder wear
• Prevents brake fluid contamination and corrosion-related damage

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Carefully remove the old master cylinder and inspect brake lines for wear or damage. Use the correct thread sizes (7/16"-24 primary, 3/8"-24 secondary) when connecting brake lines to avoid leaks. Bleed the brake system thoroughly after installation to remove air and restore proper hydraulic pressure. Follow Jeep Liberty service manual guidelines for torque specifications and safety precautions.

Quality Assurance and Warranty

Raybestos manufactures the MC391111 brake master cylinder to meet or exceed OEM specifications for Jeep Liberty brake hydraulics. The aluminum material and precise machining contribute to long-lasting durability. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.