Dinex aftermarket DPF for Cummins engines meet or exceed OEM specifications and is a direct replacement for OEM part numbers 5289796 and 5289796NX. Dinex Emissions specializes in the design, development, and manufacture of a complete line of Cummins aftermarket diesel particulate filter (DPF) and related emissions critical components. Dinex DPF and DOC Coatings are based on a high thermal stability was coat formulation with excellent NO2 recycling characteristics.