Raybestos MC391523 Brake Master Cylinder

Overview of Raybestos Element3; New Brake Master Cylinder MC391523

The Raybestos Element3; New Brake Master Cylinder MC391523 is engineered for precise hydraulic control in BMW brake systems. Designed specifically for BMW 745i, 745Li, 750i, 750Li, 760i, and 760Li models, this aluminum master cylinder ensures reliable brake performance and durability.

• Constructed from lightweight, corrosion-resistant aluminum
• Features a 1.060-inch bore size for optimal hydraulic pressure
• Includes two mounting holes with a diameter of 0.354 inches for secure installation
• Compatible with select BMW 7 Series models (745i, 745Li, 750i, 750Li, 760i, 760Li)
• Part number MC391523 for precise identification and fitment

Detailed Product Description and Attributes

The MC391523 brake master cylinder from Raybestos is crafted with an aluminum body, providing a balance of strength and weight reduction. Its 1.060-inch bore size is calibrated to deliver consistent hydraulic pressure, essential for the brake system's responsiveness in BMW 7 Series vehicles. The master cylinder mounts securely using two holes, each with a diameter of 0.354 inches, ensuring a stable fit within the brake hydraulics assembly. This part is designed to meet the specific requirements of BMW 745i, 745Li, 750i, 750Li, 760i, and 760Li models, maintaining factory specifications for brake performance.

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 product line emphasizes material quality and precise engineering, as seen in the MC391523 master cylinder’s aluminum construction and exact bore sizing. Element3; New parts are designed to integrate seamlessly with vehicle systems, providing consistent performance and durability for professional repairs and maintenance.

Common Applications and Problem Solving

• Restores proper hydraulic pressure in BMW 7 Series brake systems
• Replaces worn or leaking master cylinders causing brake fluid loss
• Eliminates spongy or unresponsive brake pedal feel
• Addresses brake system failures related to master cylinder wear
• Supports brake system rebuilds requiring OEM-spec components

Installation Notes and Tips

When installing the Raybestos MC391523 brake master cylinder, ensure the mounting holes align precisely with the vehicle’s brake hydraulics assembly. Use proper torque specifications to avoid damage to the aluminum body. Bleed the brake system thoroughly after installation to remove air and restore full hydraulic pressure. Verify compatibility with BMW 745i, 745Li, 750i, 750Li, 760i, and 760Li models before installation.

Quality Assurance and Warranty

Raybestos manufactures the MC391523 master cylinder under strict quality control standards to ensure durability and performance. The aluminum construction resists corrosion and wear, contributing to long service life. Warranty coverage details should be confirmed with the product documentation or supplier, as Raybestos typically offers limited warranties on brake hydraulics components.