Cummins ISM 310 6 Cylinder 10.8 L Diesel 310 hp Engine • 2000 US EPA Label • Engine Brake • Eaton Fuller RTO 14908LL 8LL Manual Transmission • 18740 lb Front Axle • 46000 lb Rears • 64740 lb GVWR • Air Ride Cab • Aluminum Outer Wheels • 425/65R22.5 Front Tires • 11R22.5 Rear Tires • Chalmers Walking Beam Suspension • 250 in Wheelbase • PTO