544H - LOADER, FOUR-WHEEL DRIVE 3160 Loader Hydraulics Parts group 3160 Loader Hydraulics 3160 Loader Hydraulics . Return-To-Dig Actuator and Sensor ( - XXXXXX) Return-To-Dig Actuator and Sensor (XXXXXX - ) Return-To-Dig Actuator and Sensor (For Use With Tool Carrier or Log Loader) Boom Kick-Out Boom Kick-Out (For Use With Tool Carrier or Log Loader) Return-To-Carry Sensor Return-To-Carry Sensor (For Use With Tool Carrier or Log Loader) Auxiliary Drive Gear Adapter Auxiliary Hydraulic Oil Cooler ( - 571439) Auxiliary Hydraulic Oil Cooler (571440 - 585700) Auxiliary Hydraulic Oil Cooler (585701 - )