It's good for those who do not have Auto's to get the coolers in case they want to run a cooler for something else, like PS or oil.
Now you got me intrigued; so how do you go about using it as an oil cooler? Do you need to tap the oil pan? The PS sounds easier...
I bought mine for about $130 and it does have the auto cooler, but since I am not using it, it would be an interesting project to do now that the Jeep is in Costa Rica and I can work on it (until June, anyway!). I would prefer to do the oil, but if it's too complicated, I may do the PS.
By the way, on the original subject, I bought mine off eBay, but I think the place I got it from was Radiator Barn or something like that... AL with welded tanks. I think it was a single row one, but I dont remember (cant see it on the pics, and I am in Panama until Wednesday while the Jeep is in Costa Rica)... Here's a Pic of it.