41V95 - ESAB ST-12 Replacement MIG Gun Liner

Optimize Your Welding Operations with the ESAB 41V95 Liner

In the high-stakes environment of industrial welding, equipment reliability is paramount. The ESAB 41V95 Liner is a critical maintenance component engineered specifically for the ST-12 MIG gun platform. As the primary conduit for welding wire traveling from the feeder to the contact tip, the liner plays a decisive role in the stability of your arc and the quality of your weld deposit. Over time, liners accumulate copper dust, dirt, and debris, or suffer from mechanical wear that increases friction. This friction leads to erratic feeding, micro-arcing inside the contact tip, and the dreaded "burnback" that can halt production lines.

This genuine ESAB replacement part is manufactured to strict OEM tolerances, ensuring it fits perfectly within the ST-12 cable assembly without modification. Unlike generic aftermarket liners that may have inconsistent coil spacing or inferior materials, the 41V95 is designed to maintain the correct rigidity and flexibility required for manual welding operations. It provides a low-friction path that minimizes the load on your wire feeder's drive rolls, extending the life of your entire feeding system. Whether you are running solid steel wire or flux-cored varieties, ensuring your liner is in peak condition is the first step in troubleshooting weld defects.

For maintenance managers and welding engineers, keeping a stock of 41V95 liners is a best practice for preventive maintenance. The ST-12 gun, often associated with robust legacy L-Tec and ESAB systems, relies on this specific geometry for optimal gas flow and wire alignment. Replacing the liner at regular intervals—or immediately upon signs of increased drag—ensures that your welders can focus on their technique rather than fighting their equipment. Invest in genuine ESAB parts to maintain the integrity and safety of your welding apparatus.

Technical Compatibility

The 41V95 is designed exclusively for the ST-12 series. Please verify your torch model before installation. Proper installation involves trimming the liner to the correct length as per the service manual to prevent gaps between the liner and the gas diffuser, which can lead to gas turbulence and wire shaving accumulation.