Soft Caterpillar 5835181-00. Articulated Truck software for Chassis ECM. Serial Number Prefixes 3T3, 3T4, 3T5, 3T6, 3T7, 3T8, 3F3, 3F4, 3F5, 3F6, 3F7, 3F8 - Chassis 5835181V00 JULY 17, 2019 LOC 02 General