ARP's Weld Bungs are premium quality and CNC machined from solid aluminum billet (6061) or 1018 mild steel. These weld bungs are suited for applications including oil or fuel tanks, radiators, valve covers, manifolds, rear axle housings and much more. Bung fittings are available with female pipe threads, male AN, and female O-ring types.

Available sizes: 1/4", 3/8", 1/2", 3/4" and 1"; NPT -6AN thru -20AN; -6 thru -20 O-ring.