My guess is, you are referring to the intercooler pump, not the actual intercooler (Charge Air Cooler). Even though the stock intercooler pump is a high failure rate item, I wouldn't consider it a preventative maintenance item, as it doesn't cause harm when it goes bad. When it does go bad, change it. As far as the one to use, there are several options and theories... the newer part number OEM replacement seems to be holding out fine for many. I've been running the Bosch one from a Ford Lightning for 80k miles. Swap is pretty straight forward, a couple hose clamps a bracket and an electrical plug.