Crown Alloy 3/64 x 8" ER 4043 Aluminum MIG 4 lb SPOOL (AS4043/2K)

Crown Alloy ER4043 aluminum MIG welding wire delivers reliable performance for general-purpose aluminum welding applications. This 3/64" diameter wire comes wound on a convenient 4-pound spool, making it ideal for fabrication shops and maintenance operations. ER4043 offers excellent feedability and arc characteristics when welding 6061, 6063, and other heat-treatable aluminum alloys. Perfect for structural welding, automotive repair, and marine applications requiring strong, clean welds.