Raybestos MC391485 Brake Master Cylinder

Reliable Brake Master Cylinder for Acura and Honda Vehicles

The Raybestos Element3; New Brake Master Cylinder MC391485 is engineered to restore precise brake hydraulics for select Acura and Honda 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
• 0.875-inch bore size optimized for proper hydraulic pressure
• Two ports with M12x1 thread size for primary and secondary brake lines
• Compatible with Acura and Honda models including Accord, Crosstour, MDX, Passport, Pilot, Ridgeline, and TLX

About the Raybestos Element3; New Product Line

The Element3; New line by Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM standards. This brake master cylinder MC391485 is part of that line, offering precise engineering and material quality to maintain brake system integrity in Acura and Honda vehicles. The aluminum master cylinder material contributes to durability and resistance to corrosion, supporting long-term performance.

Detailed Product Description and Specifications

This brake master cylinder features a 0.875-inch bore size, which is critical for generating the correct hydraulic pressure needed for effective braking. The two mounting holes, each with a diameter of 0.354 inches, provide a secure and stable fit during installation. Both the primary and secondary ports use M12x1 threading, ensuring compatibility with the brake lines on the specified Acura and Honda models. The aluminum construction offers a balance of strength and weight savings, helping to reduce overall vehicle weight while resisting rust and wear.

Common Applications and Problem Resolution

• Restores brake pressure loss due to worn or damaged master cylinder
• Eliminates brake fluid leaks from faulty seals or ports
• Resolves spongy or unresponsive brake pedal issues
• Replaces corroded or cracked master cylinder housing
• Ensures proper hydraulic function for safe braking performance

Installation Notes and Tips

When installing the Raybestos MC391485 brake master cylinder, ensure the mounting holes align precisely with the vehicle’s brake booster or firewall. Use the correct torque specifications for mounting bolts to avoid damage. Bleed the brake system thoroughly after installation to remove air and restore proper hydraulic pressure. Verify that the M12x1 threaded ports are securely connected to the brake lines to prevent leaks.

Quality Assurance and Warranty Information

Raybestos manufactures the Element3; New brake master cylinder MC391485 to meet stringent quality standards. The aluminum material and precise machining contribute to reliable performance and durability. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed warranties covering defects in materials and workmanship.