The OTR Charge Air Cooler is the perfect choice for those who demand the highest quality and zero tolerance for leaks. This brazed aluminum construction is designed to provide superior performance and durability for light, medium and heavy duty trucks. It is designed to provide maximum cooling efficiency and reliability while reducing the risk of engine damage due to overheating. Its superior construction and design makes it the perfect choice for those who demand the best. FleetPride is your First Click in Heavy Duty®.