Cummins ISX15 400 hp Engine • 2015 US EPA Label • Eaton Fuller FAOM-15810S-EC3 10-Speed Automated Transmission • 12000 lb Front Axle • 22700 lb Rears • 34700 lb GVWR • Engine Brake • Differential Lock • 158 in Wheelbase • Air Suspension • 275/80R22.5 Front Tires • 295/75R22.5 Rear Tires • Air Sliding 5th Wheel • Dual Fuel Tanks