Raybestos MC391021 Brake Master Cylinder

Reliable Brake Master Cylinder for Cadillac and Chevrolet Vehicles

The Raybestos Element3; New Brake Master Cylinder MC391021 is engineered to provide consistent hydraulic pressure for your braking system. Designed specifically for Cadillac Corvette and Chevrolet XLR models, this master cylinder ensures precise brake control and safety.

• Constructed from durable aluminum for lightweight strength
• Features a 1.000-inch 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 M12x1 thread size for compatibility with brake lines
• Part number MC391021 ensures exact fitment for specified vehicles

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics with modern materials and precise engineering. This brake master cylinder is part of that line, combining aluminum construction with exact specifications to meet the demands of Cadillac Corvette and Chevrolet XLR brake systems.

Detailed Product Description

This brake master cylinder MC391021 is designed with a 1.000-inch bore size to maintain consistent hydraulic pressure, essential for effective braking response. The aluminum material reduces weight while maintaining strength and corrosion resistance. Two mounting holes with a 0.421-inch diameter provide a secure fit, and the dual ports with M12x1 threads allow for straightforward connection to brake lines. This part is specifically compatible with Cadillac Corvette and Chevrolet XLR models, ensuring proper fit and function.

Common Applications and Issues Addressed

• Restores proper brake pedal feel and responsiveness
• Eliminates brake fluid leaks from worn or damaged master cylinders
• Resolves inconsistent hydraulic pressure causing uneven braking
• Replaces faulty master cylinders to maintain brake system integrity
• Supports brake system rebuilds on Cadillac Corvette and Chevrolet XLR vehicles

Installation Notes and Tips

Ensure the brake system is fully depressurized before removal. Verify mounting hole alignment and port thread compatibility during installation. Use proper brake fluid and bleed the system thoroughly to remove air after installation. Consult vehicle-specific service manuals for torque specifications and detailed procedures.

Quality Assurance and Warranty

Raybestos manufactures this brake master cylinder to meet or exceed OEM standards. The Element3; New line undergoes rigorous quality control to ensure durability and performance. Warranty coverage details should be confirmed with the product documentation or supplier.