Equip your semi truck to be Ready for the Road Ahead™, with the Dorman Heavy Duty Exhaust Gas Recirculation Cooler Kit, a key piece that reduces nitrogen oxide emissions. By utilizing a specialized design that cools the exhaust gas, this replacement device is able to decrease the overall combustion temperature and volume of NOx produced. Built with advanced materials to endure extreme temperatures. FleetPride is your First Click in Heavy Duty®.