(NEW) 2021 Cummins X15 Diesel Engine (EPA21), CPL 5779, Service Model Name: X15 CM2450 x 124B, Serial # 80364821, Family # MCEXH0912XCA, Market Name: X15 400ST, Engine Configuration D103019BX03. visit JJREBUILDERS for more information on this motor or any other diesel engine. Call for more information 786-377-5210 REF INV # 006038