420A Lower thermostat housing??

[Hoonigan407]

Ok so I'm not having any luck with the search function and I'm trying to find a new thermostat housing. Not the part where the radiator hose connects but the part that bolts to the block. Does anybody have a part number or know what to tell the parts counter baffoons to look up or am I relegated to searching a junk yard,ebay, or even worse calling a dealership for a part number. Any help is greatly appreciated.

 

[Mello]

Try p/n 4667515.

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[Hoonigan407]

Well it appears to be a discontinued part.. fml.