This Zerostart Temro Engine Heater Block Heater Immersion 3100002 is a must-have for car and truck owners who live in cold regions. It is designed to make starting your engine easier during cold weather conditions. With a direct replacement fitment type, it is easy to install and compatible with most engines. It is made by Zerostart, a reputable brand known for producing top-quality engine parts. The heater is made in the United States to ensure maximum durability and reliability.