Browse Cummins X15 EPA 21 DPF Assemblies for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 5 listings. Cummins X15 EPA 21 DPF Assembly pricing ranges from $3,000 to $3,000 based on recent marketplace data. Filter by condition, price, or year to find the right Cummins X15 EPA 21 DPF Assembly.