Description
Repair, installation, and use context
Evaluate WeldingCity Teflon Conduit Liner 35T-40-15 (.030′-.035′) 15-ft for Tweco Mini/#1 and Lincoln Magnum 100L MIG Welding Guns in the context of a Mig Welding Equipment repair, installation, or use case. The source application detail is: Premium Tweco style MIG welding gun Teflon conduit liner 35T-40-15 and 45T-40-15 for use with soft metal MIG welding wire. 15-ft long.
Plan access, tools, and surrounding components around this supporting source detail: Premium MIG welding gun Teflon soft wire conduit liner Tweco and Lincoln style 35T-40-15 and 45T-40-15. 15-ft long. Accommodate MIG welding wires (Aluminum and other “soft” alloy) 0.030″-0.035″ (35T-40-15) and 0.040″-0.045″(45T-40-15). Fit Tweco Mini and #1 series MIG welding gun and Lincoln Magnum 100L MIG gun using P/N KP2013 liner series. Confirm this final recorded point before work begins: For use with 100-180 Amp Tweco Mini and #1 and Lincoln Magnum 100L MIG welding gun (Lincoln liner P/N KP23-40-15, KP35-40-15 and KP45-40-15).
Job-planning boundary
The page preserves the supplied facts but does not infer an unlisted vehicle, installation method, or repair result.
Complete source-backed product details
Premium MIG welding gun Teflon soft wire conduit liner Tweco and Lincoln style 35T-40-15 and 45T-40-15. 15-ft long. Accommodate MIG welding wires (Aluminum and other “soft” alloy) 0.030″-0.035″ (35T-40-15) and 0.040″-0.045″(45T-40-15). Fit Tweco Mini and #1 series MIG welding gun and Lincoln Magnum 100L MIG gun using P/N KP2013 liner series.
Source product highlights
- Premium Tweco style MIG welding gun Teflon conduit liner 35T-40-15 and 45T-40-15 for use with soft metal MIG welding wire. 15-ft long.
- Accommodate MIG welding wires (Aluminum and other “soft” alloy) 0.030″-0.035″ (35T-40-15) and 0.040″-0.045″(45T-40-15).
- For use with 100-180 Amp Tweco Mini and #1 and Lincoln Magnum 100L MIG welding gun (Lincoln liner P/N KP23-40-15, KP35-40-15 and KP45-40-15).
- Refer to your MIG welding gun user manual for selection of correct liner. Teflon conduit tube may have various color. Package of 1-pk and 2-pk liners.
- U.S. based welding and hardware supplier. Strong technical support with experienced customer service to address buyer’s any question.




AN –
I bought the WeldingCity Teflon Liner 35T-40-15 (.030″-.035″) for my Lincoln 100L MIG gun to make spool changes go easier. I am very happy with this new teflon liner and immediately upon installation noticed a major improvement in the wire feed. Very easy to install and it’s slightly longer than you need so it can be cut down for an exact fit.Given the low price and easy installation I’m surprised more welders don’t use this teflon liner. I consider this a fantastic value because the improvement over feed and time saved on spool changes are a great boost to productivity. Feeding new spools is a breeze now without fear of catching the wire on it’s way through the gun.For $20 this is the most cost-effective way to upgrade your stock machine. Definitely recommend and planning to buy more!
Sam W. –
Extremely slow shipping. The liner works great for aluminum welding. It took 9 days to get it after I placed the order. I figured I’d get it sooner, since I’m only about 4 hours away. I will order again, if I’m not on a tight time frame.
hpo –
Bought this in an attempt to mig weld aluminum.Vastly improved the situation but not convinced it got me all the way there.I am using a 30 year plus welder so maybe it will do it for you.That said overall quality was good and definite feed improvement over the old one.Certainly worth a try if aluminum is what you’re after.
Julie M –
I have a Lincoln Weldpak 180 and this works to convert the machine over to weld aluminum thru the mig gun. Aluminum wire gets stuck in the regular steel liner. Easier to use than the spool gun I purchased. Must use 5356 wire because 4043 is too soft. Not sure how long it will last. Only negative is the slow shipping.
brent –
Bought this to setup my Lincoln power mig 215 to be able to mig aluminum, works great !!!! Have ran about 4 lbs of wire so far with zero issues
Anthony D. –
Did not fit my 100l mig gun without modification. Liner thicker than original metal liner, it fit the hose but not the gun. Had to drill out a portion of the gun to get it to fit but could not get it to go around the bend of the cut. I cut it to length to try it so I could not return. Waste of money. You don’t get much for what it costs, a small vinyl hose ans a brass end.
JohnSmith –
Does what it says it does, much smoother wire action. Quick and painless install, trim to fit.
Dan Langford –
Works well in old Century Welder with Tweco gun.
Leif Ronnback –
Good quality, installed with no issues!
Mario Alberto Silva levario –
Excelente producto
David T Sumrall –
This item works perfectly. The price the best I could great
Mario G. –
Excellent product