Allison 4500RDS, Transmission ECMs, (GOOD USED) Allison 4500RDS, ECM Part # 29543300, Model No.: WT3ECU911A, Base ECU P/N 29541227, E11, 020911, 10R-020911, ECU+CAL ASSY ECB00JVJ, CIN ECB00JVJ001D, Customer P/N P27-6080MH6611JFK, Serial # 1A318380, Stock # 4159