0 Cummins M11; ISM, , Turbos, Fits to: Not Available N/A, (Used) Cummins M11/ISM, TURBOS- Make: Holset, Model: HX55, Serial number: 3590044, Reference images for condition For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# 3590044, Casting# 3590044, Truck Year Not Available