OTTO Excavator Spare Parts Ex200-5 6Bg1T Thermostat Seat 5137160260 513716-0260 5-13716026-0 For Isuzu This OTTO excavator spare part, the Ex200-5 6Bg1T Thermostat Seat with part number 5137160260, is designed for maintaining and regulating the optimal operating temperature of Isuzu engines.