DuraFit™ Catalog is the most up-to-date in the field. We allow you to safely install the correct part for your fleet and personal HD vehicle. The catalog features replacement DPFs and DOCs that are available for a wide variety of 2007 and later heavy‐duty diesel applications – including buses, garbage trucks, construction vehicles, long‐haul trucks and more. Start by selecting your OEM or you can enter the DuraFit part number from your current OEM DPF or DOC unit.