Raybestos MC390503 Brake Master Cylinder

Reliable Brake Master Cylinder for Mazda 626

The Raybestos Element3; New Brake Master Cylinder MC390503 is engineered to restore precise brake hydraulics for your Mazda 626. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

• Compatible with Mazda 626 models
• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.343-inch diameter for secure installation
• 0.938-inch bore size for optimal hydraulic pressure
• Two ports with M10x1 thread size for primary and secondary connections

About the Raybestos Element3; New Product Line

The Element3; New line by Raybestos focuses on delivering reliable brake hydraulics components with precise engineering and quality materials. This brake master cylinder is part of that line, offering a balance of durability and performance tailored for specific vehicle applications like the Mazda 626.

Detailed Product Description

This brake master cylinder (part number MC390503) features an aluminum body that provides resistance to corrosion and heat, extending the service life of the component. It includes two mounting holes with a diameter of 0.343 inches, ensuring a secure and stable fit. The 0.938-inch bore size is designed to maintain proper hydraulic pressure for effective braking. Both the primary and secondary ports use M10x1 threads, compatible with standard brake line fittings for easy integration into the Mazda 626 brake system.

Common Applications and Issues Addressed

• Restores brake hydraulic pressure loss
• Replaces worn or leaking master cylinders
• Eliminates spongy or unresponsive brake pedal feel
• Fixes brake fluid leaks at the master cylinder
• Improves overall brake system reliability on Mazda 626

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Carefully remove the old master cylinder and inspect brake lines for wear or damage. Use proper brake fluid and bleed the system thoroughly after installation to remove air and ensure optimal brake performance. Verify that the mounting holes align correctly with the vehicle’s brake booster assembly.

Quality Assurance and Warranty

Raybestos manufactures the MC390503 brake master cylinder to meet strict quality standards, using durable aluminum material and precise machining. While specific warranty details should be confirmed at purchase, Raybestos products typically come with a limited warranty covering defects in materials and workmanship.