yeah thats what i basically got from talking to a cat rep....he said they did away with the aftercooler program in 2003...so 2 aftercoolers with 6000 hours....just ad 7000 bucks when you buy a cat so you have them on hand :evil: never buy another cat
Are they repairable? Did you try a heat exchanger shop?
If they are salt water aftercoolers, that might be a modern record. NY Waterway in Weehawken went thru HUNDREDS of aftercoolers on their 3406's. They had an engine with 54 hours on them that blew up from salt water intrusion. Now CAT has come up with a heat exchanger section for the aftercooler.