My coolant pump on my Syncrowave 250dx (Tig runner) has failed. It doesn't turn on most of the time, and when it does, it is painfully loud.

On the pump, it is labeled 'Procon CMP-7400'. All the online resources say that this pump isn't manufactured anymore. None are available on Ebay.

In the manual, it is labeled as Miller PN 211045. A few online site have the pump in stock, but it is $450+!

I see Miller changed up their integrated cooler. Is there an alternative motor/pump that won't cost 10% of what the whole welder cost?