Raybestos MC39330 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet and GMC Vehicles

The Raybestos Element3; New Brake Master Cylinder MC39330 is engineered to restore precise brake hydraulics for Chevrolet and GMC models. Designed specifically for G10, G20, P20, and P2500 vehicles, this master cylinder ensures consistent brake fluid pressure and reliable stopping power.

• Constructed from durable iron material for long-lasting performance
• Features a 1.125-inch bore size for optimal hydraulic function
• Includes two mounting holes with a diameter of 0.434 inches for secure installation
• Equipped with two ports: primary port thread 1/2"-20 and secondary port thread 9/16"-18
• Compatible with Chevrolet G10, G20, P20 and GMC P2500 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 is part of that line, offering a precise fit and durable iron construction to maintain brake system integrity in Chevrolet and GMC vehicles. The Element3; New series is designed to provide consistent performance and ease of installation for professional repairs.

Detailed Product Description

The MC39330 brake master cylinder is crafted from iron, providing strength and resistance to wear under demanding braking conditions. Its 1.125-inch bore size is calibrated to deliver the correct hydraulic pressure needed for effective brake operation. The unit features two mounting holes, each with a 0.434-inch diameter, ensuring a secure and stable fit. Additionally, the master cylinder includes two ports with specific thread sizes—primary port thread 1/2"-20 and secondary port thread 9/16"-18—compatible with standard brake line fittings on the specified Chevrolet and GMC models.

Common Applications and Problem Resolution

• Restores brake fluid pressure in Chevrolet G10, G20, P20, and GMC P2500 vehicles
• Replaces worn or leaking master cylinders causing brake pedal sponginess
• Addresses brake fluid leaks that reduce braking efficiency
• Solves inconsistent brake pedal feel due to internal cylinder wear
• Supports brake system rebuilds requiring OEM-compatible master cylinders

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain hydraulic integrity. Verify that mounting holes align correctly with the vehicle’s brake booster or firewall. Use compatible brake lines matching the primary and secondary port thread sizes (1/2"-20 and 9/16"-18) to prevent leaks. Inspect all brake components during installation for wear or damage to ensure overall system reliability.

Quality Assurance and Warranty

Raybestos Element3; New brake master cylinders are manufactured to meet strict quality standards, ensuring durability and performance. While specific warranty details may vary, Raybestos products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.