0 Cummins ISL, , Engine Assys, Fits to: , (Used) 2006 Cummins ISL, ENGINE ASSEMBLY- Family Number: 7CEXH0540LAO, Displacement: 8.9L, Horsepower: 280, Model: DR7721-RX, Serial Number: 60341710, Part Number: 4018326 & 4018419, 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 280, Serial# 60341710, Casting# 60341710