258727 - Miller 14-Inch Jump Liner for .047-.062 Wire (5-Pack)

Smooth Feeding for Professional Results

Every welder knows that the secret to a perfect bead often lies in the consistency of the wire feed. Nothing ruins a weld or a welder's day faster than a stuttering wire or a bird's nest in the gun. The Miller 258727 Jump Liner Assembly is your first line of defense against these common frustrations. Designed specifically for the neck of your MIG gun, this 14-inch liner bridges the gap between your main cable liner and the contact tip, guiding the wire through the tightest curves of the torch with minimal resistance.

This particular liner is sized for wire diameters from .047 to .062 inches (roughly 3/64" to 1/16"), making it an excellent choice for welders working with aluminum or thicker steel wires. The neck of the gun is where the wire takes the most abuse, bending and rubbing against the liner walls. Over time, this friction creates debris and grooves that can snag the wire. By swapping out your old, clogged jump liner with a fresh Miller 258727, you restore that 'like-new' smooth feeding action. It is especially critical for aluminum welding, where the soft wire can easily buckle if it hits any resistance in the head tube.

This pack contains five replacement assemblies, giving you the peace of mind that comes with having backup parts right in your toolbox. You won't have to stop a job and wait for a delivery just because a small consumable wore out. Installation is straightforward, allowing you to get back under the hood quickly. Whether you are fabricating heavy industrial components or performing precision aluminum repairs, relying on genuine Miller parts like this jump liner ensures your equipment performs as hard as you do. Keep your arc stable and your downtime low with this essential maintenance kit.