220 hp / 600 lb. ft. | 240 hp / 560 lb. ft. | 250 hp / 660 lb. ft. | 260 hp / 660 lb. ft. | 280 hp / 660 lb. ft. | 300 hp / 660 lb. ft.
Allison 2500HS 6-speed, double OD rated to 660 lb. ft. torque, w/Fuel Sense NAS | Optional: Allison 2500RDS 6-speed, double OD rated to 660 lb. ft. torque, w/Fuel Sense Premium | Optional: Allison 3000RDS 6-speed, double OD rated to 660 lb. ft. torque, w/Fuel Sense Premium