14401913 - Tweco 44WN-116-15 Nylon Conduit for Aluminum Wire

Tweco 1440-1913 Nylon Conduit Assembly

The Tweco 1440-1913, technically designated as the 44WN-116-15, is a specialized conduit assembly engineered for the precise feeding of aluminum welding wire. Unlike standard steel wound liners, which can abrade soft aluminum wire and cause feeding interruptions known as bird-nesting, this conduit is manufactured from high-durability nylon. The low-friction coefficient of the nylon material ensures that the wire glides smoothly through the cable assembly, maintaining consistent wire feed speeds and arc stability essential for high-quality aluminum fabrication.

This specific model is designed to accommodate 1/16-inch (1.6mm) diameter wire and measures 15 feet in length, making it a direct replacement for liners in standard 15-foot Tweco MIG gun assemblies. It belongs to the 44 Series of conduits, ensuring compatibility with a wide range of Tweco guns that utilize this backend and liner size. Proper maintenance of the wire feeding path is critical in aluminum welding; replacing worn, kinked, or contaminated liners with this correct nylon conduit is a fundamental step in troubleshooting feed issues and achieving professional weld results.