Raybestos MC391328 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet HHR

The Raybestos Element3; New Brake Master Cylinder MC391328 is designed specifically for Chevrolet HHR models. Engineered with precision, this aluminum master cylinder ensures consistent brake hydraulics performance and durability.

• Constructed from lightweight aluminum for corrosion resistance
• Two mounting holes with 0.354-inch diameter for secure installation
• 0.938-inch bore size optimized for Chevrolet HHR brake systems
• Primary port thread size M10x1 and secondary port thread M12x1 for proper hydraulic connections
• Compatible with Chevrolet HHR models requiring part number MC391328

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components with modern materials and precise engineering. This brake master cylinder is part of that line, offering improved corrosion resistance and fitment accuracy for Chevrolet HHR vehicles. The use of aluminum material in this product line helps reduce weight while maintaining strength and durability.

Detailed Product Description

This brake master cylinder features a 0.938-inch bore size, which is critical for maintaining proper hydraulic pressure in the braking system of Chevrolet HHR models. The two mounting holes, each with a diameter of 0.354 inches, provide a secure and stable attachment to the vehicle’s brake system. The primary and secondary port threads (M10x1 and M12x1 respectively) ensure compatibility with standard brake lines and fittings, facilitating straightforward installation and reliable brake fluid flow.

Common Applications and Issues Addressed

• Restores proper brake pedal feel and responsiveness
• Eliminates brake fluid leaks caused by worn or damaged master cylinders
• Resolves inconsistent braking pressure in Chevrolet HHR vehicles
• Prevents brake system failure due to internal cylinder wear
• Replaces corroded or damaged aluminum master cylinders

Installation Notes and Tips

When installing the Raybestos MC391328 brake master cylinder, ensure the mounting holes align precisely with the vehicle’s brake system bracket. Use the specified port thread sizes (M10x1 and M12x1) to connect brake lines securely, avoiding leaks. Bleed the brake system thoroughly after installation to remove air and restore optimal hydraulic pressure. It is recommended to inspect related brake components during installation for overall system integrity.

Quality Assurance and Warranty

Raybestos manufactures the MC391328 brake master cylinder to meet strict quality standards, using durable aluminum material for corrosion resistance and longevity. This part is engineered to match OEM specifications for Chevrolet HHR models. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty covering defects in materials and workmanship.