ER4043 Aluminum TIG Filler Rod

$23.15 ~~$37.95~~ In stock

ER4043 aluminum TIG filler rod, available in 1/16", 3/32", or 1/8" diameters and in 2 lb. or 10 lb. packages. This filler rod is designed for TIG welding applications.

Alloy: ER4043 aluminum
Length: 36 inches per rod
Diameter options: 1/16", 3/32", or 1/8"
Package quantities: 2 lb. or 10 lb.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

David W. ★★★★★ Oct 22, 2026

The 3/32" rods feed smoothly and stay straight through the whole 36" length, which makes a big difference on longer welds. Running them on some AC settings gave me nice, clean beads without much cleanup afterward.

Isabella U. ★★★★★ Oct 21, 2026

Ordered the 1/16" diameter for some thin aluminum repairs and it feeds beautifully into the weld joint without sticking. The 36-inch length is handy for tight spots, and the 2 lb. package is perfect for a hobbyist like me.

Michael ★★★★★ Oct 20, 2026

Bought the 3/32" set and the weld puddle flows way smoother than the 5356 I was using before. The 36-inch length keeps me from swapping rods mid-run on longer beads, and the 2 lb. pack is perfect for a weekend project.