Detroit DD13 GEN 5 12.8L engine with 525 HP and a DT12-1850-OV 12-Speed Overdrive Automated Manual Transmission, it features a 114SD PLUS Conventional Chassis. Key components include a Detroit DA-F-20.0-5 20,000# Front Axle, Meritor RT-46-160 46,000# Rear Axle, and Airliner 46,000# Rear Suspension. ? Safety and technology highlights include Detroit Assurance, Active Brake Assist 5, and a 7" Interactive Touchscreen Display Radio., PRICE DOES NOT INCLUDE THE BODY UPFIT, PRICE INCLUDES FET.