The automaker has 1,100 cars waiting to be unloaded in Portland worth about US$16.5 million, and 2,900 cars due to arrive early next week may be worth US$43.5 million, said Kim Hag Ju, an auto analyst at Samsung Securities Co. in Seoul.
Mazda Motor Corp., a third owned by Ford Motor Co., is more affected by imports from the US to Japan than from eastbound shipments from Japan, said company spokesman Katsumi Yoshitake.
Mazda, Japan's fifth-biggest automaker, ships Ford V-6 engines and 250 types of components from the US The company will consider shipping the parts by air if the situation worsens.
Polaris Industries Inc., the largest US maker of ATVs and the world's largest snowmobile maker, is considering airlifting in engines produced by Fuji Heavy Industries Ltd. for its ATVs because of the port shutdown, Chief Financial Officer Michael Malone said in an interview.
Hyundai Motor fell as much as 3.5 percent to 27,850 won, and traded at 28,300 won at of 10:46 a.m. Mazda fell as much as 3.7 percent in Tokyo to ?264 .



