K664-2 - Aluminum MIG Conversion Kit .035

Unlock Aluminum Welding Capabilities

The Lincoln Electric K664-2 Aluminum Welding Kit is the essential upgrade for welders looking to expand their capabilities into aluminum fabrication without the need for a spool gun on compatible machines. Welding aluminum presents unique challenges compared to steel; the wire is softer, more pliable, and prone to kinking or "birdnesting" if not fed correctly. This comprehensive kit addresses those mechanical challenges directly, providing a seamless solution for feeding .035 inch (0.9 mm) aluminum wire.

Everything You Need in One Box

Lincoln Electric has curated this kit to include all the necessary consumables and drive parts to convert your wire feed system. It features a specialized drive roll designed to grip soft aluminum without crushing it, ensuring consistent wire speeds. The included non-metallic cable liner is critical; unlike steel liners which can shave aluminum wire and cause clogging, this smooth liner reduces friction for trouble-free feeding. You also receive six contact tips specifically sized to accommodate the thermal expansion of aluminum as it heats up during the arc.

Premium Consumables Included

To get you welding immediately, the kit comes with a 1 lb. spool of SuperGlaze 4043 aluminum MIG wire. This 4043 alloy is a general-purpose filler metal known for its excellent flow characteristics and resistance to cracking, making it perfect for a wide range of aluminum grades. Whether you are repairing aluminum siding, working on automotive parts, or engaging in hobbyist fabrication, this kit transforms your standard MIG setup into a capable aluminum welding station.

Genuine Lincoln Quality

As a genuine Lincoln Electric product, every component in the K664-2 kit is manufactured to strict tolerances. Using OEM parts ensures that the drive roll fits your machine perfectly and the liner seats correctly in the gun cable, preventing gas leaks or feed issues. This kit is an economical alternative to purchasing a dedicated spool gun for occasional aluminum projects, offering professional results with your existing equipment.