Dongfeng Mengshi is a family of 4×4 MRAP/off-road vehicles developed by Dongfeng Motor Group. Early generations of the vehicle are built with imported Hummer H1 chassis, while later generations of the vehicles are of indigenous design. Dongfeng Mengshi generally follows the trend of American military requirements. For example, CSK-141 is the Chinese equivalent of an armor-plated reinforced Humvee, while CSK-181 is the Chinese equivalent of the Joint Light Tactical Vehicle.