Soft Caterpillar 6083242-00. Articulated Truck software for Payload ECM. Serial Number Prefixes TFB,TFF,TFH,TFJ,TFK,TFN,LFB,LFF,LFH,LFJ,LFK,LFN,2T4,2T4,2T5,2L6,2L7 and 2L8 General