Allison B300, Transmission ECMs, (GOOD USED) Allison B300, TCM Part # 29545324, Model No. A43, e11, 10R022849, Supplier P/N # ATA4303, TCM+CAL # A43004N1, CIN # 48004N10027 Serial # BK5324N37003P2ZJ, Stock # 4070 | Tested & Inspected! All our PARTS are TESTED and Ship PRIORITY MAIL! OVERNIGHT SHIPPING options are available! Contact us for more information! CALL (305)688-1101