Raybestos MC39377 Brake Master Cylinder

Reliable Brake Master Cylinder for Precise Hydraulic Control

The Raybestos Element3; New Brake Master Cylinder MC39377 is engineered to provide consistent brake hydraulic performance. Designed with durable iron construction and precise bore sizing, this master cylinder supports safe and effective braking for various vehicle applications.

• Constructed from robust iron material for durability
• Two mounting holes with 0.325-inch diameter for secure installation
• 0.688-inch bore size ensuring accurate hydraulic pressure
• Four ports with M10x1 thread size for primary and secondary connections
• Part number MC39377 for easy identification and compatibility

Detailed Specifications and Product Line Information

This brake master cylinder features a 0.688-inch bore size, which is critical for maintaining proper brake fluid pressure and pedal feel. The iron master cylinder material offers strength and resistance to wear, suitable for demanding braking systems. With two mounting holes sized at 0.325 inches in diameter, installation is stable and secure. The four ports, including primary and secondary ports both threaded M10x1, allow for reliable brake line connections. This part is part of the Raybestos Element3; New product line, which focuses on delivering quality brake hydraulics with updated manufacturing standards and materials to meet modern vehicle requirements.

Compatible Vehicle Applications and Common Issues Addressed

This master cylinder is compatible with a range of vehicles requiring a 0.688-inch bore size and M10x1 port threads. It is commonly used in brake systems where precise hydraulic control is necessary. Typical issues this part addresses include:

• Brake pedal sinking or sponginess due to master cylinder wear
• Brake fluid leaks from worn or damaged ports
• Inconsistent brake pressure affecting stopping performance
• Corrosion or damage to the master cylinder body
• Failure of the original master cylinder causing brake system malfunction

Installation Notes and Tips

When installing the Raybestos MC39377 master cylinder, ensure the mounting holes align correctly with the vehicle’s brake booster or firewall. Use proper torque specifications to avoid warping the iron body. Bleed the brake system thoroughly after installation to remove air and ensure optimal hydraulic pressure. Verify that the M10x1 threaded ports are compatible with your brake lines and fittings to prevent leaks.

Quality Assurance and Warranty Information

Raybestos Element3; New brake master cylinders are manufactured to meet or exceed OEM standards for brake hydraulics. The iron construction and precise machining contribute to long service life and reliable performance. While specific warranty details for part number MC39377 should be confirmed at the point of purchase, Raybestos typically offers limited warranties covering defects in material and workmanship.