KP2879-3 - Lincoln KP2879-3 Aluminum Neck Liner .035-1/16

Reliable Aluminum Feeding with Lincoln Electric

The Lincoln Electric KP2879-3 Neck Wire Liner is a critical component for welders utilizing push-pull MIG gun systems, specifically designed for the challenges of aluminum welding. Unlike standard steel liners, this liner is constructed from high-quality plastic. This material choice is deliberate; it significantly reduces the coefficient of friction inside the gun neck, allowing soft aluminum wires (such as 4043 or 5356 series) to glide smoothly without binding or buckling.

Designed to fit wire diameters ranging from 0.035 inches to 1/16 inches, this versatile liner accommodates the most common sizes used in industrial aluminum fabrication. It is engineered to fit perfectly within 45-degree and 60-degree neck assemblies found on Lincoln Electric's Pistol Grip Push-Pull guns. By maintaining the integrity of the wire as it passes through the sharp bend of the neck, the KP2879-3 helps prevent "bird-nesting" and ensures a stable arc for high-quality welds.

Regular maintenance of your MIG gun's front-end consumables is essential for downtime reduction. Over time, liners can become clogged with debris or worn down, leading to erratic feeding. Replacing your neck liner with this genuine Lincoln Electric part restores factory-level performance to your equipment. Whether you are fabricating boat hulls, trailers, or automotive components, this liner provides the reliability professional welders demand.