KP502-1/16 - Lincoln Electric LN-8/LN-9 Drive Roll Kit for 1/16 Solid Wire

Smooth and Reliable Feeding for LN-8 and LN-9 Systems

Every welder knows that a smooth wire feed is the backbone of a good MIG weld. If your wire is slipping, stuttering, or jamming, it doesn't matter how steady your hand is—the weld will suffer. The Lincoln Electric KP502-1/16 Drive Roll Kit is the solution for welders running 1/16" solid wire on LN-8 or LN-9 wire feeders. This kit is built to take the headache out of wire feeding, providing the positive traction needed to push heavy solid wire through long gun cables without hesitation.

This kit isn't just a spare part; it's an upgrade to your daily welding experience. It includes a precision-machined drive roll and a matching guide tube. The guide tube is often overlooked, but it is crucial for supporting the wire as it enters and exits the drive assembly. A worn guide tube can cause the wire to wander, leading to erratic feeding. By replacing both the roll and the tube simultaneously with this kit, you ensure a straight, low-friction path for your wire, significantly reducing the risk of "birdnesting" at the feeder.

Designed specifically for solid steel wire, the drive roll features a groove geometry that maximizes surface contact area. This allows the feeder to transmit torque to the wire effectively without crushing it. Crushed wire can become oval-shaped, causing it to drag inside the liner and wear out contact tips prematurely. With the KP502-1/16, your wire stays round and feeds smoothly, resulting in a stable arc and consistent penetration. This is particularly important when welding with larger diameter wires like 1/16" (1.6 mm), where the feed force requirements are higher.

Keep your Lincoln Electric equipment running like new. Whether you are in a high-production manufacturing environment or a custom fab shop, downtime is costly. Having a fresh drive roll kit on hand or installed in your machine means you are ready to tackle heavy fabrication jobs with confidence. Trust in the quality of OEM Lincoln Electric parts to keep your arc lit and your beads looking professional. Don't let worn feed rolls compromise your work; upgrade to the KP502-1/16 and feel the difference in your wire delivery.