This high-grade water temperature sensor sender fits 3116, 3406, 3114 and 3126 diesel engines perfectly. It picks up actual coolant temperature in real use, and sends accurate readings to the machine display panel. Operators are able to check engine working conditions conveniently, so they can effectively stop sudden overheating failures from happening. It comes with solid sealed construction and tough raw materials. The part can stand fluid corrosion and varying temperatures well. It delivers steady and durable working effects for heavy-duty power units and construction machines in daily use.