Looking for a dependable fix for your failing Allison transmission control module? The Synapse Allison T14A / A40 TCM Exchange is designed to restore proper shifting, transmission communication, and overall drivability when factory modules begin to fail. Common symptoms such as harsh shifting, limp mode activation, gear selection issues, or transmission-related trouble codes can often be traced to a faulty TCM. This exchange unit offers a cost-effective solution that helps get your truck back on the road with confidence.
Professionally rebuilt and tested for reliable performance, each Synapse TCM is engineered to meet or exceed OEM functionality standards. Designed as a direct replacement for the factory Allison T14A / A40 module, every unit undergoes extensive testing to help ensure proper operation and communication with your truck’s transmission system.