4790 - Bernard 4790 EZ Feed MIG Gun Body Tube 400A

High-Performance Replacement Body Tube for Industrial Welding

The Bernard 4790 Body Tube is a premium replacement component engineered specifically for the Bernard EZ Feed series of MIG welding guns. In the demanding world of industrial fabrication, equipment reliability is paramount. This body tube is rated for 400 Amps, making it suitable for heavy-duty welding applications where consistent heat management and electrical conductivity are critical. By utilizing genuine Bernard parts, facilities can ensure that their welding equipment operates at peak efficiency, maintaining the rigorous standards required for structural steel, heavy equipment manufacturing, and general fabrication tasks.

One of the defining features of the EZ Feed system is its ability to deliver welding wire smoothly and consistently, reducing the occurrence of bird-nesting and liner friction. The 4790 Body Tube plays a vital role in this system. Its internal geometry is precision-manufactured to align perfectly with the gun's liner and handle, ensuring a seamless path for the wire. This reduces drag and wear on consumables, ultimately extending the service life of the entire gun assembly. The tube is constructed from high-grade materials that offer superior thermal conductivity, effectively dissipating heat during long weld cycles to prevent overheating and operator discomfort.

Maintenance personnel and procurement specialists will appreciate the durability and exact fit of the 4790. Unlike generic aftermarket replacements, which may suffer from dimensional variances or inferior alloy composition, this genuine Bernard component guarantees compatibility. It connects securely to the gun handle, providing a robust mechanical and electrical connection that resists loosening due to thermal expansion or vibration. Whether you are refurbishing a fleet of welding guns or performing a quick repair on the line, the Bernard 4790 Body Tube is the reliable choice for restoring your equipment to factory specifications.

Investing in quality replacement parts like the Bernard 4790 helps minimize unscheduled downtime. A worn or damaged body tube can lead to erratic arc starts, poor gas coverage, and increased spatter, all of which compromise weld quality and increase rework costs. By proactively replacing worn goosenecks with this 400-amp rated tube, operations can maintain high productivity levels and ensure weld integrity across all projects.