0459990073 - ESAB PA/Bronze Neck Liner for 0.030-0.040 Aluminum Wire

Smooth Feeding for Aluminum Welding

Struggling with bird-nesting or erratic wire feeding when welding aluminum? The solution might be in your torch neck. The ESAB PA/Bronze Neck Liner (Part Number 0459990073) is designed specifically to solve the unique challenges of feeding soft welding wires. Unlike standard steel liners that can scratch and drag against soft alloys, this liner features a specialized Polyamide and Bronze construction. This material combination offers the slickness of plastic with the durability of metal, ensuring your wire glides smoothly right up to the contact tip.

This liner is sized perfectly for 0.8mm to 1.0mm (0.030" to 0.040") wires, covering the most common sizes used for thin-to-medium gauge aluminum and brazing applications. Whether you are repairing an aluminum trailer, working on automotive body panels with silicon bronze, or fabricating custom marine parts, consistent wire delivery is the key to a stable arc and a beautiful bead. A worn or incorrect liner in the neck of your gun is often the hidden culprit behind burn-backs and frustrating downtime.

Why Choose PA/Bronze?
Pure Teflon or plastic liners are great for the main cable, but they can sometimes melt or deform in the high-heat zone of the torch neck. Pure steel liners are too rough for aluminum. The PA/Bronze mix gives you the best of both worlds: it withstands the heat generated near the arc while providing a low-friction tunnel that protects soft wires from deformation. This results in less downtime clearing jams and more time laying down welds.

Installation and Maintenance
Swapping out your neck liner is a quick maintenance task that pays huge dividends. Simply access the neck of your compatible ESAB MIG gun, remove the old liner, and slide this new one in. It is a cost-effective upgrade that restores your torch's performance to factory standards. Keep a few of these in your toolbox so you are never caught off guard by feeding issues in the middle of a critical job. Trust ESAB's engineering to keep your wire moving and your welds looking professional.