Cummins C8.3; ISC, ECMs, (TESTED W/ WARRANTY) Cummins C8.3/ISC ECM Part # 4921776 For Sale, Part # 4921776, CM850, CPL 8692, Off Cummins ISC Diesel Engine, EGR-Model, Fits 2004, 2005, 2006, ESN 60321421, ECM Code W90091, ECM Serial # 34295885, Stock # 8058 | Tested & Inspected!