Raybestos MC391004 Brake Master Cylinder

Reliable Brake Master Cylinder for Acura and Honda Vehicles

The Raybestos Element3; New Brake Master Cylinder MC391004 is engineered to restore precise brake hydraulics for Acura MDX, Honda Odyssey, and Honda ZDX models. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.354-inch diameter for secure installation
• Bore size of 0.875 inches for optimal hydraulic pressure
• Two ports with M12x1 thread size for primary and secondary connections
• Compatible with Acura MDX, Honda Odyssey, and Honda ZDX

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components with precise engineering and quality materials. This brake master cylinder MC391004 is part of that line, offering a balance of durability and performance tailored for specific Acura and Honda models. The use of aluminum material and standardized port threads reflects the line’s commitment to fit and function.

Technical Details and Features

This brake master cylinder features a bore size of 0.875 inches, which is critical for maintaining proper hydraulic pressure in the braking system. The two mounting holes, each with a diameter of 0.354 inches, provide a secure and stable attachment to the vehicle’s brake system. Both the primary and secondary ports use M12x1 threading, ensuring compatibility with standard brake lines on Acura MDX, Honda Odyssey, and Honda ZDX models. The aluminum construction offers resistance to corrosion and reduces overall weight compared to traditional cast iron cylinders.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or leaking master cylinder
• Eliminates spongy or unresponsive brake pedal feel
• Replaces master cylinder failures causing brake fluid leaks
• Addresses inconsistent braking performance in Acura MDX, Honda Odyssey, and Honda ZDX
• Supports brake system rebuilds requiring precise hydraulic components

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain hydraulic integrity. Verify that the mounting holes align correctly with the vehicle’s brake booster or firewall. Use compatible brake lines with M12x1 threaded fittings for secure port connections. Inspect all seals and gaskets during installation to prevent leaks.

Quality Assurance and Warranty

Raybestos manufactures the MC391004 brake master cylinder to meet or exceed OEM specifications for Acura and Honda vehicles. The Element3; New line undergoes rigorous quality control to ensure durability and performance. Warranty coverage details should be confirmed with the product documentation or manufacturer.