I could not find a Miller part so I called and was able to locate a hard to find part which they shipped and received in a few days.
Sumner 786070 EXPANSION PLUG,6.0" (150MM) ALUMINUM
Sumner 786070 EXPANSION PLUG,6.0" (150MM) ALUMINUM
Sumner Part Number 786070
EXPANSION PLUG,6.0" (150MM) ALUMINUM
Manufacture: Sumner
Regular price
$36.65
Regular price
Sale price
$36.65
Unit price
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per