KP674-045S - Lincoln Electric KP674-045S Drive Roll Kit for Wire-Matic 255 & SP-255 (.035-.045 Solid)

Precision Wire Feeding for Lincoln Systems

The Lincoln Electric KP674-045S Drive Roll Kit is an essential component for fabricators and welders utilizing the Wire-Matic and Idealarc SP series welding machines. Specifically engineered for solid wire applications, this kit accommodates wire diameters ranging from 0.035 inches to 0.045 inches (0.9mm - 1.2mm). Proper drive roll selection is critical for achieving a stable arc and high-quality weld beads; using the correct V-groove rolls prevents wire deformation and ensures smooth delivery through the liner and gun.

This kit is designed to fit a specific range of classic Lincoln Electric power sources, including the Wire-Matic 255, Idealarc SP-255, SP-250, and SP-250-I. These machines utilize a 2-roll wire drive system where the quality of the roller surface directly impacts feeding performance. The KP674-045S features precision-machined grooves that grip solid mild steel or stainless steel wire firmly without crushing it, which is a common issue when using incorrect or worn rollers. By maintaining the integrity of the wire shape, these rolls help reduce friction inside the MIG gun liner, leading to fewer feeding issues and less downtime.

Constructed from hardened steel, these drive rolls are built to withstand the rigors of industrial welding environments. Over time, drive rolls can wear down, leading to slippage and erratic wire speeds. Replacing your worn rolls with this genuine Lincoln Electric kit restores your machine's feeding efficiency. Whether you are working in automotive repair, light fabrication, or general maintenance, ensuring your wire feeder is equipped with the correct KP674-045S kit is the first step toward consistent welding results.

Installation is straightforward, allowing operators to swap out rolls quickly when changing wire sizes or replacing worn components. Trust in genuine Lincoln Electric parts to maintain the reliability and performance standards of your welding equipment.