Raybestos MC391506 Brake Master Cylinder

Overview of Raybestos MC391506 Brake Master Cylinder

The Raybestos Element3; New Brake Master Cylinder MC391506 is engineered for reliable brake hydraulics performance in select Mercedes-Benz models. Designed with precision, this aluminum master cylinder ensures consistent braking response and durability.

• Constructed from durable aluminum for strength and corrosion resistance
• Features a 1.000-inch bore size for optimal hydraulic pressure
• Includes 2 mounting holes with a diameter of 0.354 inches for secure installation
• Equipped with 2 ports, both with M12x1 thread size for compatibility with brake lines
• Compatible with multiple Mercedes-Benz models including C63 AMG, C250, C300, C350, E350, E400, E550, GLK250, and GLK350

Detailed Product Description

The Raybestos MC391506 brake master cylinder is a critical component in the brake hydraulics system, responsible for converting pedal force into hydraulic pressure. Manufactured from aluminum, this master cylinder offers a balance of lightweight design and durability, helping to resist corrosion and wear over time. The 1.000-inch bore size is calibrated to provide consistent fluid displacement, ensuring reliable brake performance across various driving conditions.

This master cylinder includes two mounting holes with a diameter of 0.354 inches, allowing for precise and secure attachment to the vehicle’s firewall or brake booster. The two ports, both threaded M12x1, facilitate straightforward connection to the brake lines, supporting efficient fluid flow and system integrity.

About the Element3; New Product Line

The Element3; New line by Raybestos focuses on delivering updated brake hydraulics components that meet or exceed OEM specifications. This product line emphasizes material quality and dimensional accuracy, which is evident in the MC391506 master cylinder’s design. The Element3; New series is intended to provide dependable replacement parts for professional repairs and maintenance on Mercedes-Benz vehicles.

Compatible Vehicles and Applications

• Mercedes-Benz C63 AMG
• Mercedes-Benz C250
• Mercedes-Benz C300
• Mercedes-Benz C350
• Mercedes-Benz E350
• Mercedes-Benz E400
• Mercedes-Benz E550
• Mercedes-Benz GLK250
• Mercedes-Benz GLK350

Common Issues Addressed by This Master Cylinder

• Brake pedal sinking or sponginess due to internal seal wear
• Brake fluid leaks from the master cylinder ports or mounting area
• Inconsistent brake pressure affecting stopping performance
• Corrosion or damage to the original master cylinder housing
• Failure of the master cylinder bore causing brake system malfunction

Installation Notes and Tips

When installing the Raybestos MC391506 master cylinder, ensure the mounting holes align precisely with the vehicle’s brake booster or firewall. Use the specified 0.354-inch diameter mounting holes for secure attachment. Properly thread the brake lines into the M12x1 ports to avoid leaks. Bleed the brake system thoroughly after installation to remove air and restore optimal hydraulic pressure.

Quality Assurance and Warranty

Raybestos manufactures the MC391506 master cylinder to meet strict quality standards, using high-grade aluminum and precise machining. This part is designed to match OEM specifications for fit and function. While specific warranty details should be confirmed at the point of purchase, Raybestos products typically come with a limited warranty covering defects in materials and workmanship.