Need a part number - oil filter screw thingy?

[Buick Beginner]

Guys,
Does anyone have the part number for the piece your oil cooler adapter screws onto? It's the piece you unbolt to get to your oil pump gears. I guess you would call it the lower half of your oil pump. Thanks - BB

 

[Fuelie600]

I believe your refering to the oil pump cover. It's been discountinued from GM, but there might be some aftermarket (not sure). You can find them in salvage yards, or maybe someone on this board might sell one to you.