The Eaton Endurant EEO-18F112C is a heavy-duty 18-speed automated manual transmission built for on-highway applications. Designed for durability, fuel efficiency, and smooth performance in demanding fleet environments. Recorded for EEO-18F112C: brand Eaton, family Eaton Endurant, series Endurant, type automated manual, speed 12-speed, application on-highway. Gear ratios, torque ratings, and interchange details are verified per unit against your tag or VIN rather than published here. Availability: Available Now.