trickmaster505

Looking to buy a bung to weld to my oil pan on my teg. I'm pretty sure I've got a steel pan, but what I can't figure out is if this fitting from ATP is alum or steel. I know I can go to anplumbing and buy an earl fitting, but theres other things I want to buy from atp, and I dont want to get raped on shipping for buying just a bung from anplumbing. Heres the link for ATP: http://www.atpturbo.com/Mercha...L-007