Allison B300, Transmission ECMs, (GOOD USED) Allison B300, TCM Part # 29544775, Model No. A43, e11, 10R022849, Supplier P/N # ATA4302, Pulled off Model # B300, TCM+CAL # A43004N1, CIN # 44004N10023, Serial # BK4775N36307LNVX, Stock # 4091 | Tested & Inspected!