OTTO Excavator Spare Parts Ls4300 6Sd1T Thermostat Seat 1137161470 113716-1470 1-13716147-0 For Isuzu This OTTO excavator spare part, the LS4300 6Sd1T Thermostat Seat with part numbers 1137161470, 113716-1470, 1-13716147-0, is designed for Isuzu engines to help regulate and maintain the optimal operating temperature.