Raybestos MC391054 Brake Master Cylinder

Overview of Raybestos MC391054 Brake Master Cylinder

The Raybestos Element3; New brake master cylinder MC391054 is designed specifically for Mazda RX-8 models. Engineered with precision, this aluminum master cylinder ensures reliable brake hydraulics performance tailored to your vehicle's needs.

• Constructed from durable aluminum for lightweight strength
• Two mounting holes with 0.343-inch diameter for secure installation
• 0.875-inch bore size optimized for Mazda RX-8 brake systems
• Two ports with M12x1 thread size for primary and secondary connections
• Part number MC391054 ensures exact fitment and compatibility

Element3; New Product Line Details

The Element3; New line by Raybestos focuses on delivering reliable brake hydraulics components with modern materials and precise engineering. This brake master cylinder is part of that line, offering an aluminum construction that balances durability and weight savings. The design supports consistent hydraulic pressure and compatibility with specific vehicle models like the Mazda RX-8.

Technical Description and Specifications

This brake master cylinder features a 0.875-inch bore size, which is critical for maintaining proper hydraulic pressure in the braking system of the Mazda RX-8. The aluminum material provides corrosion resistance and reduces overall weight compared to traditional cast iron units. It includes two mounting holes, each with a diameter of 0.343 inches, ensuring a secure and stable fit. The unit has two ports, both threaded M12x1, for primary and secondary brake line connections, facilitating straightforward installation and reliable fluid transfer.

Common Applications and Problem Solving

• Replacement for worn or leaking brake master cylinders on Mazda RX-8
• Restores proper brake pedal feel and hydraulic pressure
• Addresses brake fluid leaks caused by damaged seals or corrosion
• Improves braking system reliability after master cylinder failure
• Supports brake system rebuilds requiring OEM-spec components

Installation Notes and Tips

When installing the Raybestos MC391054 brake master cylinder, ensure the mounting holes align precisely with the vehicle’s brake booster or firewall. Use the correct torque specifications for the 0.343-inch diameter mounting bolts to avoid damage. Confirm that the M12x1 threaded ports are clean and free of debris before connecting brake lines. Bleed the brake system thoroughly after installation to remove air and ensure optimal brake performance.

Quality Assurance and Warranty

Raybestos manufactures the MC391054 brake master cylinder to meet strict quality standards, ensuring durability and consistent performance. The aluminum construction resists corrosion and wear over time. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.