Mack MP8 6 Cylinder 12.8 L Diesel 338 hp Engine • 2007 US EPA Label • Eaton Fuller 10-Speed Manual Transmission • 12000 lb Front Axle • 40000 lb Rears • 52009 lb GVWR • Aluminum Outer Wheels • 11R22.5 • Air Ride Suspension • 186 in Wheelbase • PTO • Wet Kit • Air Sliding 5th Wheel • Dual Fuel Tanks