The T440 is 2010 EPA- and CARB-compliant without using selective catalytic reduction technology or a diesel particulate filter. It operates on compressed or liquefied natural gas, and when combined with an automatic transmission to improve throttle and torque, it provides excellent pulling power. Styling features include an aerodynamic sloped hood and bumper. Kenworth Truck Co. 425-828-5000. www.kenworth.com

 
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