This high-quality thermostat is designed to fit Cummins engines K19, K38, K50, N14, and NT855. It is manufactured in China and has part numbers 3059408 and 3048784. This item is perfect for those looking for a replacement thermostat for their engine cooling system. It is compatible with a variety of engines and is made to ensure optimal performance. Buy now and experience the difference this thermostat can make for your vehicle.