The Diesel Particulate Filter (DPF) System is the most sensitive controlled system on your truck, and any minor issue with the DPF could leave you with a broken down truck on the side of the road. Whether it's an OEM system, Cummins, Cat, Detroit Diesel, etc; or a Retrofit system, Donaldson, JMI, Cleaire, etc, we service them all! We offer a wide variety of diesel exhaust and emissions parts and carry more inventory in stock than any of our competitors! Visit our parts store online today at Esuparts.com or call 888-550-9293 to schedule your service. Please provide your location, truck#, requested date/time of service, contact name/number, and a brief summary of the truck symptom or service type.