Allison B300, Transmission ECMs, (GOOD USED) Allison B300, TCM Part # 29545324, Model No. A43, e11, 10R022849, Supplier P/N # ATA4303, Pulled off Model # B300, TCM+CAL # A43004N1, CIN # 48004N10027, Serial # BK5324N37022R53Z, Stock # 4088 | Tested & Inspected!