Machine description: Cummins L9 6 Cylinder 9 L Ultra Low Sulfur Diesel 300 hp Engine, US EPA Label, Eaton Fuller RTO 149013LL 13-Speed Manual Transmission, 20000 lb Front Axle, 46000 lb Rears, Meritor RT-46-160 Drive Axle... more info about the 2021 United 4700SB.