Remanufactured from Weller, the Detroit DT12DA2CS transmission delivers direct-drive efficiency with cooler-ready capability and single clutch reliability for heavy duty trucking applications. Built to OEM Detroit standards, this model provides 12 forward speeds, automated shifting technology, and a design engineered for long-term durability. With enhanced cooling options, smoother gear transitions, and reduced maintenance needs, the DT12DA2CS helps fleets minimize downtime, improve fuel efficiency, and maintain consistent performance mile after mile.