Steel 1/2" NPT Weld On Stepped Bung Female Nut Threaded NPT,

Steel Weld On Bung 1/2 Inch NPT Female Threaded Pipe Fitting Adapter New

Steel 1/2" NPT Weld On Stepped Bung Female Nut Threaded Weldable .5 in.

Vibrant Performance 11273; Weld-on Bung, Steel 1/2 in. NPT Female, 1.25 in. OD

STM Aluminum Male AN Weld Bungs

Vibrant Performance 11271; Weld-on Bung, Steel 1/4 in. NPT Female, .875 in. OD

NyTrex Pipe Fitting 173800; NPT Weld-On Bung Aluminum 1/8" NPT Female, Pair

STM Valve Cover Fittings for Evo 4/5/6/7/8/9