KP3991-35 - Lincoln Magnum PRO AL Push-Pull Liner 35ft .035-1/16

Keep Your Aluminum Running Smoothly at 35 Feet

If you are running a push-pull gun, you know that the liner is the lifeline of your operation. The Lincoln Electric KP3991-35 is the direct replacement conduit liner for your 35-foot Magnum PRO AL gun, and it is built to handle the frustration-free feeding you need. Aluminum wire is notoriously difficult to feed over long distances; it wants to buckle, birdnest, and shave at every opportunity. This liner is your defense against those headaches, providing a slick, protected path for the wire to travel from the cabinet to the puddle.

Designed specifically for the Magnum PRO AL series, this liner isn't just a generic plastic tube. It features the correct rigidity and low-friction interior surface required to support .035" through 1/16" aluminum wire. When you are 30 feet up on a scaffold or deep inside a hull, the last thing you want is a feed issue caused by a kinked or clogged liner. This 35-foot assembly ensures that the push motor in the cabinet and the pull motor in the gun can work in perfect sync, delivering wire at a constant speed for that distinct, smooth spray transfer hiss welders love.

Changing out your liner is a standard part of preventative maintenance that pays off immediately. If you have noticed your arc starting to stutter, or if you are seeing pile-ups at the drive rolls, your old liner might be packed with aluminum oxide and shavings. Swapping it out for a fresh KP3991-35 takes minutes but can save hours of troubleshooting. It fits perfectly into the back end and the gun head, with no modification needed. It is tough enough to handle the bending and twisting of daily shop life while keeping the delicate aluminum wire safe inside.

Don't let a $50 part ruin a $5,000 job. Keep your push-pull system firing on all cylinders with the right liner. The KP3991-35 gives you the reach you need with the reliability Lincoln Electric is famous for, letting you focus on your bead profile rather than fighting your equipment.