Soft Caterpillar 5489612-00. Articulated Truck software for Payload Measurement System. Serial Number Prefixes TFB, TFF, TFH, TFJ, TFK, TFN, LFB, LFF, LFH, LFJ, LFK, LFN, 2T3, 2T4, 2T5, 2L6, 2L7, 2L8 General