Raybestos MC391180 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet and GMC Vehicles

The Raybestos Element3; New Brake Master Cylinder MC391180 is engineered to provide consistent hydraulic pressure for your braking system. Designed specifically for select Chevrolet and GMC models, this master cylinder ensures precise brake control and safety.

• Constructed from durable aluminum for corrosion resistance and longevity
• Features a 37.000 mm bore size for optimal hydraulic performance
• Includes two mounting holes with a diameter of 0.421 inches for secure installation
• Equipped with two ports, both with M14x1.5 thread size for compatibility with brake lines
• Compatible with Chevrolet Express 2500, Express 3500, Suburban 2500, GMC Savana 2500, Savana 3500, and Yukon XL 2500

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 brake master cylinder is part of that line, offering a balance of quality materials and precise engineering to maintain brake system integrity in heavy-duty Chevrolet and GMC vehicles.

Detailed Product Description

The MC391180 brake master cylinder is crafted from aluminum, providing a lightweight yet robust solution for brake hydraulics. Its 37.000 mm bore size is designed to deliver consistent hydraulic pressure, essential for effective braking response. The two mounting holes, each with a 0.421-inch diameter, ensure a secure fitment on compatible vehicles. Additionally, the master cylinder features two ports with M14x1.5 threading, allowing for straightforward connection to brake lines. This part is specifically designed for use in Chevrolet Express 2500, Express 3500, Suburban 2500, and GMC Savana 2500, Savana 3500, and Yukon XL 2500 models, ensuring proper fit and function.

Common Issues Addressed by This Master Cylinder

• Brake pedal sinking or sponginess due to internal leaks
• Reduced braking efficiency from worn or damaged master cylinder components
• Brake fluid leaks around the master cylinder mounting area
• Inconsistent hydraulic pressure affecting brake balance
• Failure of the original master cylinder in Chevrolet or GMC heavy-duty models

Installation Notes and Tips

• Ensure the vehicle is properly supported and the brake system is depressurized before removal
• Use the two 0.421-inch mounting holes for secure attachment
• Verify port thread compatibility (M14x1.5) with existing brake lines
• Bleed the brake system thoroughly after installation to remove air
• Inspect related brake components for wear during replacement

Quality Assurance and Warranty

Raybestos manufactures the MC391180 brake master cylinder to meet stringent quality standards. The aluminum construction resists corrosion and wear, contributing to long service life. While specific warranty details should be confirmed with the supplier, Raybestos products typically come with a limited warranty covering defects in materials and workmanship.