Remanufactured from Weller, the Detroit DT12OA2CD transmission delivers overdrive performance with cooler-ready capability and advanced double clutch technology for demanding heavy duty trucking applications. Built to OEM Detroit standards, this model features 12 forward speeds, automated shifting, and an optimized design for durability and fuel efficiency. With provisions for improved cooling, smoother gear transitions, and reduced driver fatigue, the DT12OA2CD helps fleets extend service life, reduce downtime, and maintain dependable performance mile after mile.