OTTO Excavator Spare Parts Fr75-7 4Jg1 Thermostat Seat 8972389760 897238-9760 8-97238976-0 For Isuzu This product is a thermostat seat for Isuzu engines in OTTO excavators, specifically designed for the Fr75-7 4Jg1 model with part number 8972389760. It ensures optimal temperature regulation, crucial for engine performance and longevity.