Japan Transport Engineering Company (J-TREC) is a manufacturer of heavy rail cars in Japan, formerly known as Tokyu Car Corporation . The company is based in Kanazawa-ku, Yokohama, and a member of East Japan Railway Company group. J-TREC manufactures rail vehicles not only for JR East and Tokyu Corporation but for other Japanese operators, including various Japan Railways Group companies and international operators as well.

The E751 series (E751系) is an AC electric multiple unit (EMU) train type operated on Tsugaru limited express services in the north of Japan by East Japan Railway Company since March 2000. The design was based on the earlier E653 series EMUs, with improvements to cope with colder weather conditions in the north of Japan.