I have an International 9400 I, and fought with the 5 minute idle shutdown for months. I was in electronics and found a way to do it. I had a small circuit board made
and inserted in line with the cruise control wiring. I can idle forever now. I only do it to keep my batteries charged when the refrigerator is running, and to keep warm when it is cold\
It would be nice to have an APU, but they are expensive. I can make you a kit to get the truck to idle for about $125.
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