Whether you're tearing up the trails or hauling hay in the fields, you need your Honda TRX450R/TRX450ER 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 TRX's cooling system isn't maintained with quality parts. Luckily, Mishimoto has y ou covered with this low temp thermostat for your 2005-2014 Honda TRX450R/TRX450ER. Our thermostat fits just like stock and features a lower opening temperature to help your TRX450R/TRX450ER stay cool in hot climates or under high loads. Like all our powersports products, this low temp thermostat for your 2005-2014 Honda TRX450R/TRX450ER is backed by our Mishimoto Lifetime Warranty.