Raybestos MC39767 Brake Master Cylinder

Overview of Raybestos Element3; New Brake Master Cylinder MC39767

The Raybestos Element3; New Brake Master Cylinder MC39767 is designed specifically for Chevrolet and GMC C3500 and K3500 models. Engineered with precision, this aluminum master cylinder ensures reliable brake hydraulics performance for heavy-duty trucks.

• Constructed from durable aluminum for corrosion resistance
• Features a 1.250-inch bore size for optimal hydraulic pressure
• Includes two mounting holes with a diameter of 0.433 inches for secure installation
• Equipped with two ports: primary port thread 9/16"-18 and secondary port thread 1/2"-20
• Compatible with Chevrolet and GMC C3500 and K3500 models

Detailed Product Description

The Raybestos Element3; New brake master cylinder MC39767 is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Made from aluminum, this master cylinder offers enhanced durability and resistance to rust, which is essential for maintaining brake system integrity over time. The 1.250-inch bore size is designed to provide consistent fluid displacement, ensuring effective braking response. With two mounting holes sized at 0.433 inches in diameter, installation is straightforward and secure. The master cylinder includes two ports with specific thread sizes—9/16"-18 for the primary port and 1/2"-20 for the secondary port—allowing compatibility with standard brake lines on Chevrolet and GMC heavy-duty trucks.

About the 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 material quality and precise engineering to support the demanding requirements of heavy-duty vehicles like the Chevrolet C3500 and GMC K3500. The MC39767 master cylinder is part of this line, offering a balance of durability and performance tailored for brake system maintenance and repair.

Common Applications and Issues Addressed

• Replacement for worn or leaking brake master cylinders on Chevrolet C3500 and GMC K3500
• Restores proper hydraulic pressure for consistent brake pedal feel
• Eliminates brake fluid leaks caused by damaged seals or corrosion
• Resolves spongy or unresponsive brake pedal issues
• Supports brake system rebuilds and upgrades on heavy-duty trucks

Installation Notes and Tips

Ensure the vehicle is securely supported before beginning installation. When replacing the master cylinder MC39767, carefully disconnect brake lines to avoid damage to the port threads (primary port 9/16"-18, secondary port 1/2"-20). Bleed the brake system thoroughly after installation to remove air and restore proper hydraulic function. Verify mounting hole alignment with the 0.433-inch diameter holes for a secure fit on Chevrolet and GMC C3500 and K3500 models.

Quality Assurance and Warranty

Raybestos manufactures the Element3; New MC39767 brake master cylinder to meet stringent quality standards. The aluminum construction provides corrosion resistance and long service life. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed warranties to ensure reliability and customer confidence.