UD Trucks Corporation (UDトラックス株式会社) is a Japanese company whose principal business is the manufacture and sales of light, medium and heavy duty diesel trucks, buses, bus chassis and special-purpose vehicles. The company is owned 100% by the Volvo Group under Volvo Trucks since 2007. Formerly known as Nissan Diesel, the company changed its name to UD Trucks on February 1, 2010. Already before the name change, the UD name was prominently displayed to separate the identity from that of their former owner Nissan Motors.