2023 Cummins X15, Truck Tractor, Engine Assys, Fits to: Kenworth T680, (Used) 2021 Cummins X15 450, ENGINE ASSEMBLY- Family Number: MCEXH0912XCA, Displacement: 14.9L, Horsepower: 450, Ar.No./CPL: 5779, Serial Number: 80388820, Part Number: E84W582K401X1V0815, E.C.S: EGR, PTOX, SCRC, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Horse Power 450, Serial# 80388820, Casting# 80388820 3WKYD49XXPF137619