Raybestos MC391423 Brake Master Cylinder

Reliable Brake Master Cylinder for BMW 1 Series M and M3

The Raybestos Element3; New Brake Master Cylinder MC391423 is engineered to provide consistent hydraulic pressure for your BMW 1 Series M and M3 models. Designed with precision, this aluminum master cylinder ensures durability and optimal brake performance.

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.354-inch diameter for secure installation
• Primary and secondary port threads sized M12x1 for compatibility with OEM brake lines
• Specifically designed for BMW 1 Series M and M3 brake hydraulics
• Part number MC391423 for accurate identification and fitment

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM specifications. This product line emphasizes material quality and precise engineering, making the MC391423 brake master cylinder a suitable replacement part for maintaining the brake system integrity in BMW 1 Series M and M3 vehicles.

Detailed Product Description

This brake master cylinder features an aluminum body that offers a balance of strength and corrosion resistance, essential for long-term brake system reliability. The two mounting holes, each with a diameter of 0.354 inches, provide a secure fit to the vehicle’s brake assembly. Both the primary and secondary ports use M12x1 threading, ensuring compatibility with standard brake line fittings on BMW 1 Series M and M3 models. The MC391423 part number corresponds to this exact configuration, facilitating straightforward replacement and maintenance.

Common Applications and Issues Addressed

• Restores proper hydraulic pressure in brake systems
• Replaces worn or leaking master cylinders causing brake fluid loss
• Eliminates spongy or unresponsive brake pedal feel
• Prevents brake system failure due to internal seal wear
• Ensures consistent brake performance for BMW 1 Series M and M3 vehicles

Installation Notes and Tips

When installing the Raybestos MC391423 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. Verify 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 restore proper hydraulic function.

Quality Assurance and Warranty

Raybestos manufactures the MC391423 brake master cylinder to meet stringent quality standards, using durable aluminum material and precise machining. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship. Refer to Raybestos documentation for exact warranty terms.