Cummins N/A, Turbos, (GOOD USED) Holset Cummins HX55 Turbocharge 3590044 For Sale, Assy 3590044, Customer # 3590045, Model # HX55, Part # 3590044, 3590045, Other Part # 3535400, 85369477, 22164, Serial # C991Z01701, Stock# 6727 | Tested & Inspected!