The Kubota W21THK0098 is a genuine OEM thermostat designed to precisely regulate engine operating temperature, ensuring optimal performance and longevity. This critical component helps maintain fuel efficiency and reduces wear by controlling coolant flow. It is compatible with a wide range of Kubota compact tractors, utility vehicles, and zero-turn mowers, including specific models from the B, BX, F, G, GR, K, RTV, and Z series. Manufactured to Kubota's stringent quality standards, this thermostat provides reliable and accurate temperature control.