Lincoln Electric KP42-25-15 Mig Wire Liner 250A 15 Ft

Product Description

The LINCOLN ELECTRIC KP42-25-15 is an air-cooled wire liner designed for MIG welding guns. It guides welding wire from the drive rolls through the gun cable to the contact tip, maintaining smooth, consistent wire feed during operation. This liner accommodates wire diameters from 0.025 to 0.030 inches and carries an amperage rating of 250 amps. At 15 feet in overall length, it fits standard-length MIG gun assemblies. Welding technicians and fabricators rely on properly sized liners to reduce bird-nesting, minimize feed resistance, and maintain arc stability across a range of wire and base metal combinations.

This liner is suited for use in Lincoln Electric MIG welding systems. It is commonly installed during routine gun maintenance, liner replacement intervals, or when transitioning to a different wire diameter within the supported range. Air-cooled configurations are standard in light-to-medium industrial and fabrication environments where water-cooled guns are not required. It is packaged and sold as a single unit.

Key Features

• Supports wire diameters from 0.025 to 0.030 inches
• 250-amp amperage rating suitable for light-to-medium duty MIG welding
• 15-foot overall length matches standard MIG gun cable assemblies
• Air-cooled liner design for conventional MIG gun configurations
• OEM-style replacement fits Lincoln Electric gun assemblies

Compatibility

Designed for use with Lincoln Electric MIG welding equipment. Consult your gun model documentation to confirm liner length and wire diameter range before installation.

Installation Notes

Wire liner replacement is performed by qualified welding technicians as part of scheduled gun maintenance. Before servicing the gun, disconnect the welder from its power source and release any wire tension at the drive rolls. Thread the new liner carefully to avoid kinking, and trim to length only after confirming fit against the gun diffuser. Always verify drive roll groove size matches the wire diameter in use after liner installation.