Water pump housing

[DETONATION666]

Ive been looking for the rear housing for the us-spec water pump and I cant seem to find a place to get just the rear part anyone have sugestions? I think the GE and GTE are the same but im not sure they sure look that way

[soapra]

NA back housing is different. The dealer has it, but its cheaper to buy the complete pump then to buy just the rear housing.