Heavy duty aftertreatment emission components reduce harmful gases created by diesel engines, meeting today's tough emissions regulations. Without these heavy duty parts, contamination from heavy duty trucks can pose a larger threat to the environment. FleetPride has an extensive inventory of heavy duty emissions control parts to choose from. Whether you need diesel particulate filters, diesel oxidation catalysts, diesel exhaust fluid, exhaust manifolds, EGR coolers, EGR valves or sensors, we have the right part for your heavy duty needs. View our diverse inventory today to find what you need. Dorman HD Solutions has a reputation in the heavy duty truck and trailer industry for having a variety of parts for a complete repair. They use advanced reverse-engineering techniques to check into today's common failures and figure out the why. Afterward, they use findings to apply modern technologies to match OEM parts and solve the issues. Based in Colmar, PA, Dorman HD Solutions' roots started in 1918. Dorman HD Solutions’ goal is to provide cost-saving solutions to their customers. They take pride in their ability to reduce technicians' time and owners' money with their innovative products and solutions.