Mishimoto 98-13 Arctic Cat 500 Performance Thermostat 63C/145FWhether you're tearing up the trails or hauling hay in the fields, you need your Arctic Cat 500 to stay at the optimal temperature. Long periods of idling and low speed high load driving can cause engine temps to creep up if your Arctic Cat's cooling system isn't maintained with quality parts. Luckily, Mishimoto has you covered with this low temp thermostat for your 1998 2013 Arctic Cat 500. Our thermostat fits just like stock and features a lower