20402146 - Tweco Cable Support Spring for MIG Guns

Reliable Cable Protection for Industrial Welding

The Tweco 2040-2146 Strain Relief Spring is an essential component designed to maintain the integrity of your MIG welding gun's cable assembly. In the demanding environment of industrial fabrication, welding cables are subjected to constant movement, twisting, and bending. Without proper support, the connection points—particularly near the handle or the machine plug—become vulnerable to kinking. This kinking not only damages the outer jacket and internal copper strands but can also severely restrict the movement of the welding wire through the liner, leading to erratic feeding and poor weld quality.

Engineered by Tweco, a leader in arc welding products, this cable support spring is manufactured from high-quality, resilient steel. It is designed to slide over the cable assembly, providing a flexible yet firm reinforcement that distributes bending stress over a larger area. This simple yet effective mechanism prevents the cable from bending too sharply, thereby significantly extending the service life of your equipment. It is a direct replacement part for Tweco MIG guns, ensuring a perfect fit and restoring the original protective capabilities of the torch.

Maintenance professionals understand that preventative care is key to minimizing downtime. Replacing a worn, stretched, or missing strain relief spring is a cost-effective measure that prevents more expensive repairs down the line, such as replacing an entire cable assembly. The 2040-2146 is built to withstand the rigors of daily shop use, resisting deformation and providing consistent support shift after shift. Whether you are refurbishing older equipment or maintaining a fleet of production torches, this genuine Tweco component ensures your welding operations continue to run smoothly and efficiently.

Key Technical Benefits:

• Stress Distribution: Mitigates mechanical stress at critical cable junctions.


• Feed Consistency: Prevents liner compression caused by sharp cable angles.


• OEM Compatibility: Designed specifically for seamless integration with Tweco cable assemblies.