Raybestos MC39578 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet and GMC Vehicles

The Raybestos Element3; New Brake Master Cylinder MC39578 is engineered to restore proper brake hydraulics in select Chevrolet and GMC models. Designed with precision, this iron master cylinder ensures consistent braking performance for vehicles like the Astro, G10, G20, P20, P2500, and Safari.

• Constructed from durable iron material for long-lasting strength
• Features a bore size of 28.600 mm 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 1/2"-20 and secondary port thread 9/16"-18
• Compatible with Chevrolet Astro, G10, G20, P20, P2500, and GMC Safari 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 brake master cylinder MC39578 is part of that line, offering a robust iron construction and precise port threading to ensure compatibility and performance in Chevrolet and GMC brake systems.

Detailed Product Description

This brake master cylinder MC39578 is designed to maintain proper hydraulic pressure within the brake system of Chevrolet and GMC vehicles, including the Astro, G10, G20, P20, P2500, and Safari. The iron material provides durability and resistance to wear, while the 28.600 mm bore size supports effective fluid displacement. The two mounting holes with a 0.433-inch diameter allow for secure attachment, and the dual ports with specific thread sizes (1/2"-20 primary and 9/16"-18 secondary) ensure proper brake line connections.

Common Issues Addressed by This Brake Master Cylinder

• Brake pedal sinking or sponginess due to master cylinder failure
• Brake fluid leaks around the master cylinder area
• Reduced braking efficiency or inconsistent brake pressure
• Brake warning light activation related to hydraulic issues
• Difficulty maintaining proper brake pedal height and feel

Installation Notes and Tips

• Ensure compatibility with Chevrolet Astro, G10, G20, P20, P2500, and GMC Safari before installation
• Bleed the brake system thoroughly after installation to remove air pockets
• Use proper tools to avoid damaging the mounting holes or port threads
• Inspect brake lines and fittings for wear or damage during replacement
• Follow vehicle manufacturer torque specifications for mounting bolts

Quality Assurance and Warranty

Raybestos manufactures the MC39578 brake master cylinder to meet stringent quality standards, ensuring reliable performance in brake hydraulic systems. While specific warranty details are not provided here, Raybestos products typically come with coverage against manufacturing defects. Consult product documentation or the manufacturer for exact warranty terms.