Welding Liner
MIG gun liners (wire conduit liners) from HYW Products. The liner runs the length of the gun cable and guides the wire from the feeder to the contact tip. A liner matched to your wire size and in good condition is essential for smooth, consistent feeding — a worn or wrong-size liner causes bird-nesting, erratic arcs, and burnback.
Specifications & FAQ — click to expand
| What it does | Guides wire from feeder to contact tip |
| Size by | Wire diameter & cable length |
| Liner type | Steel coil for steel/stainless; nylon or PTFE for aluminum |
Frequently Asked Questions
Which liner do I need?
Match the liner to your wire diameter and gun/cable length. Use a steel coil liner for steel and stainless wire, and a nylon or PTFE (Teflon) liner for soft aluminum wire to prevent friction and shaving.
What causes wire feeding problems?
Often a worn, kinked, or wrong-size liner. Replacing the liner and matching it to the wire usually restores smooth feeding.
Related: Contact Tips · Welding Guns
Cross-Reference & Brand Equivalents — click to expand
HYW MIG gun liners are Tweco-style and serve as dimensionally compatible, economical replacements for the OEM liners below. Find your current brand and wire size to identify the HYW equivalent.
| Brand | Their Product | Replace With (HYW) |
|---|---|---|
| Tweco | Conventional liner 42-3035-15 (.030–.035", 15 ft) · 42-4045-15 (.040–.045", 15 ft) | HYW Tweco-style liner |
| Lincoln Electric | Magnum liner — KP1937-3 | HYW Tweco-style liner |
| Miller | M-series liner — 194011 / 194012 | HYW Miller-style liner |
Disclaimer: HYW Products is an independent distributor and is not affiliated with, endorsed by, or sponsored by Tweco®, Lincoln Electric®, or Miller®. All brand names, model numbers, and trademarks are the property of their respective owners and are referenced solely for nominative comparison and cross-reference (AWS/OEM fitment) to help customers identify compatible replacement parts.
