2001 Cummins ISB, Mt, Engine Assys, Fits to: Freightliner MT55 Chassis, 2000 Cummins ISB, 5.9L. Engine. S/N-46063056 P/N-1CEXH0359BAV HP-185 CPL-2687 ECS-N/A Ref#-S01-27038-000 For more information about this item call. We ship worldwide. 929 W Pulaski Hwy Elkton, MD 21921, Horse Power 185, Serial# 46063056, Casting# 46063056 4UZAA5BW21CJ04596