Raybestos MC391168 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet and GMC Trucks

The Raybestos Element3; New Brake Master Cylinder MC391168 is engineered to restore precise brake hydraulics for heavy-duty Chevrolet and GMC vehicles. Designed with durable aluminum construction and exact fitment specifications, this master cylinder supports safe and consistent braking performance.

• Constructed from lightweight, corrosion-resistant aluminum
• Features a 1.500-inch bore size for optimal hydraulic pressure
• Includes two mounting holes with a diameter of 0.421 inches for secure installation
• Equipped with two ports, both with M12x1 thread size for compatibility with brake lines
• Compatible with Chevrolet Silverado 2500 HD, 3500 HD, Suburban 2500, and GMC Sierra 2500 HD, 3500 HD, Yukon XL 2500, Express 2500/3500, and Savana 2500/3500 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 specifications. This product line emphasizes precision engineering and material quality, such as the aluminum master cylinder body found in part number MC391168, to ensure durability and consistent brake system performance in demanding applications.

Detailed Product Description

The Raybestos MC391168 brake master cylinder is designed with a 1.500-inch bore size to provide the correct hydraulic pressure needed for heavy-duty braking systems. Its aluminum construction offers resistance to corrosion and reduces overall weight compared to traditional cast iron units. The master cylinder includes two mounting holes, each with a 0.421-inch diameter, ensuring a secure and exact fit on compatible Chevrolet and GMC models. Both primary and secondary ports feature M12x1 threading, allowing for straightforward connection to brake lines without modification.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or leaking master cylinders
• Eliminates spongy or unresponsive brake pedal feel
• Addresses brake fluid leaks at the master cylinder ports or mounting points
• Replaces damaged or corroded master cylinders in Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD trucks
• Ensures proper brake hydraulics for heavy-duty vehicles like the Chevrolet Express 3500 and GMC Savana 2500

Installation Notes and Tips

• Verify compatibility with your specific Chevrolet or GMC model before installation
• Ensure brake fluid system is properly bled after installation to remove air
• Use correct torque specifications on mounting bolts to avoid leaks or damage
• Inspect brake lines and fittings for wear or damage during replacement
• Follow manufacturer guidelines for brake system maintenance and safety

Quality Assurance and Warranty

Raybestos manufactures the MC391168 brake master cylinder to meet stringent quality standards, using durable aluminum materials and precise machining. This part is backed by Raybestos' quality assurance processes to ensure reliable performance in heavy-duty Chevrolet and GMC vehicles. Warranty coverage details should be confirmed through Raybestos or authorized distributors.