; HomeHeavy Duty Truck PartsExhaust EmissionDiesel Particulate Filter (DPF)FreightlinerCascadiaUsed 2012 Freightliner Cascadia Diesel Particulate Filter (DPF) Used 2012 Freightliner Cascadia Diesel Particulate Filter (DPF) Unfortunately this part is temporarily unavailable. View other Freightliner Cascadia Diesel Particulate Filter (DPF)