Can you replace the whole water pump housing

Hi - Dave here, contributing to RepairPal and providing expert advice since 2010. Did not indicate which engine your vehicle has. But either way, the water pump is an assembly of itself. It can be replaced. I'm not sure what the context of your question is, feel free to respond with more clarifications. https://repairpal.com/auto-repair-near-me Click the link to find some shops near you who can help out!