Thermo King Expertise and Services Thermo King is the global leader in transport temperature control systems for trucks, trailers, buses, and rail cars. Additionally, Thermo King manufactures auxiliary power units that significantly reduce engine idling. As part of Thermo King’s extensive nationwide dealer network, we offer expert factory-trained service when and where you need it, along with a comprehensive line of genuine and competitive parts. Rely on us to get you back on the road swiftly...