KP502-3/32 - Lincoln Electric KP502-3/32 Drive Roll & Guide Tube Kit for LN-8/LN-9

Smooth Feeding for Professional Results

Take control of your welding projects with the Lincoln Electric KP502-3/32 Drive Roll Kit. If you are running an LN-8 or LN-9 wire feeder, you know that the heart of your machine is the feed mechanism. Old, worn-out drive rolls can cause slipping, birdnesting, and inconsistent arc starts that frustrate even the most experienced welders. This kit is designed to restore your machine's feeding performance to like-new condition, specifically for heavier wire gauges between .068" and 3/32". Whether you are running structural flux-cored wire or heavy solid wire, this kit delivers the traction you need.

Built for Versatility and Precision

One of the standout features of this kit is its ability to handle both solid and cored wires effectively. The drive rolls are precision-machined to grip the wire firmly without deforming it. This is particularly important for cored wires, which can be crushed by inferior rolls, leading to feeding issues inside the gun liner. With the KP502-3/32, you get a consistent feed speed that allows you to focus on your puddle manipulation and bead appearance rather than fighting your equipment. The kit covers a range of sizes (1.7mm to 2.4mm), giving you flexibility for different heavy-fabrication jobs.

Everything You Need in One Package

Lincoln Electric makes maintenance easy by including the matching guide tube in this kit. Many welders overlook the guide tube, but it plays a crucial role in directing the wire from the inlet to the drive rolls and into the gun. A grooved or worn guide tube can cause drag and misalignment. By swapping out both the roll and the tube at the same time, you ensure a straight, smooth path for your welding wire. This simple upgrade can significantly improve your arc stability and reduce spatter caused by erratic feeding.

Easy Installation

Installing the KP502-3/32 kit is quick and straightforward, minimizing your downtime. The parts are designed to fit perfectly into the LN-8 and LN-9 mechanisms without the need for modification or excessive adjustment. Keep a spare kit in your toolbox or shop cabinet so you are never caught off guard by worn components in the middle of a critical job. Trust in the durability and engineering of Lincoln Electric to keep your welds strong and your workflow smooth.