Diesel Emissions

At American Radiator, we are your trusted source for diesel emissions solutions, specializing in Diesel Particulate Filters (DPF filters) and Diesel Oxidation Catalysts (DOC filters) for heavy-duty trucks and equipment. Designed to keep your fleet efficient, reliable, and compliant with strict EPA standards, our filters deliver OEM-level quality at a fraction of dealer pricing. Unlike remanufactured or service-exchange options, every DPF and DOC we sell is brand-new in the box, with no core charges, saving fleets hundreds of dollars on every purchase.

Our replacement DPF filters feature stainless steel canisters and OEM-grade Cordierite inserts for strength, performance, and long service life. Replacement DOC filters are built to precise OEM specifications to ensure seamless integration with your truck’s emissions system. We stock solutions for major brands including Cummins, Detroit Diesel, Volvo, Paccar, International Navistar, Hino, and Mack, ensuring you get the right fit fast.

Fleet managers and drivers rely on American Radiator for same-day shipping nationwide, helping minimize costly downtime. Every DPF and DOC comes backed by a two-year warranty, and most include clamps and gaskets for added convenience. For reliable, cost-effective aftermarket diesel emissions parts, trust American Radiator to keep your trucks compliant and on the road.

FAQ'S

What is the difference between a DPF and a DOC filter?
A Diesel Particulate Filter (DPF) captures soot and particulate matter, while a Diesel Oxidation Catalyst (DOC) reduces carbon monoxide, hydrocarbons, and other emissions. Together, they keep trucks compliant with EPA standards.

Are American Radiator DPF and DOC filters new or remanufactured?
All DPF and DOC filters from American Radiator are 100% brand-new in the box, never remanufactured or service-exchange units. This ensures durability, longer service life, and no hidden core charges.

Which brands of trucks are compatible with your diesel emissions filters?
We carry aftermarket DPF and DOC filters for major brands including Cummins, Detroit Diesel, Volvo, Paccar, International Navistar, Hino, and Mack, with direct-fit options for most heavy-duty applications.

Do your DPF and DOC filters include a warranty?
Yes. Every American Radiator replacement DPF and DOC filter comes backed by a two-year warranty against manufacturer defects, providing peace of mind and dependable protection for your fleet.

How fast can I get a replacement DPF or DOC filter?
With American Radiator’s famous same-day shipping nationwide, most orders ship the same day they are placed, helping reduce downtime and get your truck back on the road quickly.