The diesel particulate filter (DPF) traps and burns off exhaust soot; a clogged or failed DPF causes power derates, regen problems, and check-engine codes. We carry OEM-brand DPFs for light- and heavy-duty diesel applications including Ford Powerstroke, Dodge Ram Cummins, and GM Duramax. Many ship next business day within the US. Always verify the DPF against your engine and emissions configuration by OEM part number.