OTTO Excavator Parts Tcm 4Jg2 Thermostat Hose 8943288320 894328-8320 8-94328832-0 For Isuzu This product is a thermostat hose designed for the Tcm 4Jg2 model of Isuzu engines, used in OTTO excavator parts. It serves to regulate and control the flow of coolant in the engine system for optimal performance.