Engines | Mounts, , 2005 ALLISON 4500RDS, Engine ECM, (GOOD USED) ALLISON 4500RDS TRANSMISSION CONTROL MODULE TCM PART # 29544774, MODEL A42, MOTOROLA P/N ATA4202, CUSTOMER P/N 1MS384, STOCK # 2391 | 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