Electronics, , ALLISON 4500, Transmission ECM, (GOOD USED) 2018 ALLISON 4500 TRANSMISSION CONTROL MODULE TCM PART # 29551869 FOR SALE, PULLED OFF 2009 MACK 600 TRUCK, TCM A59 12V/24V, ASSY # A5900C53, STOCK # 2129 ALL OURPARTSARETESTEDAND SHIPPRIORITY MAIL!OVERNIGHT SHIPPINGOPTIONS ARE AVAILABLE! CONTACT US FOR MORE INFORMATION!CALL(305)688-1101