OTTO Excavator Spare Parts Cxz2003 6Wf1 Thermostat Seat 1113100550 111310-0550 1-11310055-0 For Isuzu This OTTO Excavator Spare Part, the Cxz2003 6Wf1 Thermostat Seat with part number 1113100550, is designed for Isuzu engines to regulate and maintain the ideal operating temperature efficiently.