(Used) 2001 Cummins ISB, ENGINE ASSEMBLY- Serial Number: 5040902, Part Number: 3990517, Horsepower: 185, ESN: 60293517, Engine: P-30641, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921