Need help with identifying a part

My father is looking for a part from a Pontiac Montana circa 2002. The part is located on the drivers side under the hood and he says it's a pump that will pump the water faster to warm up the vehicle faster. Anyone have ideas on exactly the name or where I can find one? Thanks.

My father is looking for a part from a Pontiac Montana circa 2002. The part is located on the drivers side under the hood and he says it's a pump that will pump the water faster to warm up the vehicle faster. Anyone have ideas on exactly the name or where I can find one? Thanks.
I believe it is an "auxiliary coolant pump" & I have a bit more information on this page (http://www.my-chevy-venture.com/auxiliary-coolant-pump.html).

Take Care,