KP3991-15 - Lincoln KP3991-15 Magnum PRO AL Aluminum Liner 15ft

Reliable Replacement Liner for Magnum PRO AL Guns

Keep your aluminum welding projects moving forward with the Lincoln Electric KP3991-15 Magnum PRO AL Conduit Liner. Designed specifically for 15-foot Magnum PRO AL push-pull guns, this replacement liner is the key to solving frustrating wire feeding issues. If you are experiencing stuttering wire, burn-back, or inconsistent arc starts while welding aluminum, a worn or clogged liner is often the culprit. This genuine Lincoln part restores the smooth, low-friction path your wire needs to travel from the feeder to the workpiece.

Aluminum wire is much softer than steel, making it prone to kinking and shaving if the liner isn't in top condition. The KP3991-15 is manufactured to handle wire diameters from .035" up to 1/16", making it a versatile choice for various aluminum welding applications. Its specialized construction minimizes friction, allowing the push-pull system to function efficiently without overworking the drive motors or deforming the wire. A smooth feed means a steady arc, better penetration, and cleaner welds with less spatter.

Why Choose Genuine Lincoln Parts?

• Perfect Fit: Guaranteed compatibility with your Magnum PRO AL gun means no modifications are needed.
• Durability: Built to withstand the industrial environment and resist rapid wear from wire friction.
• Performance: Maintains the precise internal geometry required to support soft aluminum wire over a 15-foot distance.

Don't let a cheap or worn-out liner compromise your weld quality. Regular replacement of your conduit liner is a small investment that pays off in reduced downtime and frustration. The KP3991-15 is easy to install, getting you back under the hood quickly. Whether you are in a production shop or a custom fabrication garage, trust Lincoln Electric consumables to deliver professional results every time you pull the trigger.