Auxillary Heater

Looking to enhance your heavy-duty truck’s comfort and efficiency? At American Radiator, based in Des Moines, Iowa, our aftermarket auxiliary heaters deliver reliable performance when you need reliable heat—without idle time. Our auxiliary heaters are engineered to meet or exceed OEM standards for mounting, coolant flow, and thermal output, ensuring your truck or auxiliary power unit stays warm and operational across the Midwest.

Wondering how they integrate into your system? These auxiliary heater units work seamlessly with cab heating setups, engine-block warming systems, and APU applications—delivering consistent output and optimized performance in extreme conditions. Whether you manage one truck or an entire fleet, our heavy-duty auxiliary heaters provide a direct-fit solution designed to minimize downtime and keep your vehicle ready for any job.

Why choose us? With a focus on heavy-duty cooling and heating components, American Radiator offers expert support, local stock, and fast shipping for auxiliary heating solutions. Built for rugged duty cycles and tough environments, our auxiliary heaters stand up to cold starts, idling restrictions, and high-load scenarios—keeping your crew comfortable and your equipment efficient. Whether you’re operating year-round in Iowa or running regional routes throughout the United States, trust our auxiliary heaters to keep your truck’s climate control system working as hard as you do.