Raybestos MC391177 Brake Master Cylinder

Overview of Raybestos MC391177 Brake Master Cylinder

The Raybestos Element3; New Brake Master Cylinder MC391177 is designed for reliable brake hydraulics performance in Chevrolet Cobalt and Pontiac G5 vehicles. Engineered with precision, this aluminum master cylinder ensures consistent braking response and durability.

• Constructed from lightweight aluminum for corrosion resistance
• Two mounting holes with 0.354-inch diameter for secure installation
• 0.875-inch bore size optimized for brake fluid pressure control
• Two ports with M12x1 thread size for primary and secondary brake lines
• Compatible with Chevrolet Cobalt and Pontiac G5 models

Element3; New Product Line Details

The Element3; New line by Raybestos focuses on delivering dependable brake hydraulics components that meet or exceed OEM specifications. This product line emphasizes material quality and precise engineering, making the MC391177 master cylinder a suitable replacement part for maintaining brake system integrity in select GM vehicles.

Technical Description and Specifications

The MC391177 brake master cylinder features an aluminum body that offers enhanced resistance to rust and wear compared to traditional cast iron units. It includes two mounting holes, each with a diameter of 0.354 inches, ensuring a secure fit during installation. The 0.875-inch bore size is designed to provide optimal hydraulic pressure for effective braking. Both the primary and secondary ports use M12x1 thread sizes, compatible with standard brake line fittings for Chevrolet Cobalt and Pontiac G5 models.

Applications and Problem Solving

• Replaces worn or leaking brake master cylinders in Chevrolet Cobalt and Pontiac G5
• Restores proper brake fluid pressure and pedal feel
• Addresses brake system leaks caused by damaged ports or seals
• Improves braking response and safety in aging brake systems
• Suitable for brake system rebuilds requiring OEM-equivalent components

Installation Notes and Tips

• Ensure compatibility with Chevrolet Cobalt or Pontiac G5 before installation
• Use proper tools to avoid damaging the M12x1 threaded ports
• Bleed the brake system thoroughly after installation to remove air
• Inspect mounting holes and hardware for secure fitment
• Follow vehicle manufacturer torque specifications for mounting bolts

Quality Assurance and Warranty

Raybestos manufactures the MC391177 brake master cylinder to meet strict quality standards, ensuring reliable performance and durability. The Element3; New product line is engineered to match OEM specifications, providing confidence in fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.