OTTO Excavator Parts Nkro2 4Jb1T 8972548160 897254-8160 8-97254816-0 Thermostat For Isuzu This OTTO Excavator part, the Thermostat for Isuzu with part number 8972548160, is designed for the Nkro2 4Jb1T model. It helps regulate engine temperature for optimal performance and efficiency in your equipment.