KP42-4045-15 - Lincoln Electric Magnum PRO MIG Liner .035-.045 15ft

Smooth Wire Feeding for Better Welds

Nothing ruins a good weld bead faster than a stuttering wire feed. If you are experiencing erratic feeding, burnback, or the dreaded birdnest at the drive rolls, your liner might be the culprit. The Lincoln Electric KP42-4045-15 is the genuine replacement liner you need to get your Magnum PRO MIG gun back to peak performance. Designed for the professional welder, this liner reduces friction inside the cable, ensuring your wire glides smoothly right to the contact tip.

Designed for Magnum PRO Guns

This liner is built specifically for 15-foot Magnum PRO setups, including the popular Curve 200 and HDE 250 models. It handles the most common wire sizes used in the shop—.035" and .045". whether you are welding mild steel on a production line or fabricating custom parts, this liner provides the consistent support your wire needs. Don't settle for generic knock-offs that might not fit perfectly; stick with genuine Lincoln parts to keep your arc stable and your spatter low.

Maintenance Made Easy

Changing your liner is one of the cheapest and most effective ways to troubleshoot a MIG gun. A kinked or clogged liner acts like a brake on your wire, forcing your feeder to work harder and leading to inconsistent amperage. By swapping in a fresh KP42-4045-15, you eliminate that drag. The result is a crisp, steady arc that responds instantly to your trigger pulls. Keep a spare in your toolbox so you are never stuck waiting on parts when a deadline is looming.

Heavy-Duty Construction

Lincoln Electric builds these liners to last. The spiraled steel construction offers excellent flexibility without collapsing, allowing you to maneuver around your workpiece without pinching off the wire flow. It resists the buildup of shavings and debris better than inferior materials, giving you more arc time between service intervals. Upgrade your maintenance routine with the reliability of Lincoln Electric consumables.