Raybestos MC390920 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda Protege and Protege5

The Raybestos Element3; New Brake Master Cylinder MC390920 is engineered to restore precise brake hydraulics for Mazda Protege and Protege5 models. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

Key Features of Raybestos MC390920 Brake Master Cylinder

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with a diameter of 0.354 inches for secure installation
• Bore size of 0.938 inches optimized for brake fluid pressure control
• Primary and secondary port threads sized M10x1 for compatibility with standard brake lines
• Specifically designed for Mazda Protege and Protege5 brake hydraulic systems

Detailed Description of the Element3; New Brake Master Cylinder

This Raybestos Element3; New brake master cylinder, part number MC390920, is crafted to meet the precise hydraulic requirements of Mazda Protege and Protege5 vehicles. The aluminum master cylinder material offers a balance of strength and corrosion resistance, contributing to long-term durability. The two mounting holes, each with a 0.354-inch diameter, provide a secure and stable fit to the vehicle’s firewall or mounting bracket. The 0.938-inch bore size is calibrated to maintain proper brake fluid pressure, ensuring responsive and reliable braking. Both primary and secondary ports feature M10x1 threading, compatible with standard brake hydraulic fittings, facilitating straightforward installation and maintenance.

Applications and Common Issues Addressed

• Restores brake fluid pressure for consistent pedal feel
• Replaces worn or leaking master cylinders causing brake fluid loss
• Eliminates spongy or unresponsive brake pedal issues
• Addresses internal seal failures within the brake hydraulic system
• Ensures proper brake system operation for Mazda Protege and Protege5 models

Installation Notes and Tips

• Verify compatibility with Mazda Protege or Protege5 before installation
• Ensure mounting holes align correctly with vehicle bracket using the 0.354-inch diameter holes
• Use appropriate brake fluid and bleed the system thoroughly after installation
• Check primary and secondary port threads (M10x1) for proper brake line connection
• Follow manufacturer torque specifications to avoid damage during mounting

Quality Assurance and Warranty Information

The Raybestos Element3; New brake master cylinder MC390920 is manufactured to meet OEM standards for fit, form, and function. The aluminum construction and precise machining contribute to reliable performance and longevity. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.