The Class 8 Western Star 4700 vocational truck, available in set-forward and set-back configurations, has a 110" BBC, the shortest in its class. Standard engine is a 6-cylinder, in-line DD13, with ratings of 350 to 450 hp and 1,250 to 1,650 ft./lbs. of torque. It has the BlueTec selective catalytic reduction emissions technology and the Amplified Common Rail System. Cummins ISC and ISL engines are optional. A broad range of transmissions, including the Eaton UltraShift Plus and Allison 3000 and 4000 Series, are available.