Raybestos MC391166 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet, GMC, and Saab

The Raybestos Element3; New Brake Master Cylinder MC391166 is engineered to restore precise brake hydraulics for select Chevrolet, GMC, and Saab models. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance for vehicles like the Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x.

• Constructed from lightweight, corrosion-resistant aluminum
• Features a 1.060-inch bore size for optimal hydraulic pressure
• Includes two mounting holes with 0.343-inch diameter for secure installation
• Equipped with two ports, both with 1/2"-20 thread size for compatibility
• Compatible with Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x models

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM standards. This brake master cylinder is part of that line, offering precise engineering and material quality to maintain brake system integrity. The aluminum master cylinder material provides a balance of strength and corrosion resistance, suitable for demanding driving conditions in Chevrolet, GMC, and Saab vehicles.

Detailed Product Description

The MC391166 brake master cylinder is designed with a 1.060-inch bore size to provide the correct hydraulic pressure needed for effective braking. It features two mounting holes, each with a diameter of 0.343 inches, ensuring a secure and stable fit during installation. The master cylinder includes two ports, both threaded at 1/2"-20, allowing for straightforward connection to brake lines. Its aluminum construction offers durability and resistance to corrosion, which is essential for maintaining long-term brake system performance.

Common Applications and Problem Solving

• Restores brake hydraulic pressure in Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x
• Replaces worn or leaking master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Fixes brake system leaks due to damaged ports or seals
• Improves overall brake system reliability and safety

Installation Notes and Tips

Ensure the vehicle is properly supported and the brake system is depressurized before beginning installation. Verify that the mounting holes align correctly with the vehicle’s brake booster or firewall. Use the specified 1/2"-20 threaded ports to connect brake lines securely, and bleed the brake system thoroughly after installation to remove air and restore proper brake function.

Quality Assurance and Warranty

Raybestos Element3; New brake master cylinders are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms related to part number MC391166.