Takata Corp., whose defective air bag inflators triggered the biggest recall in auto industry history, hired law firm Weil Gotshal & Manges LLP to help it weigh options that could include bankruptcy or a sale, according to people with knowledge of the matter.

The Japanese manufacturer might choose to seek court protection just for its U.S. unit, said one of the people, who asked not to be named because the discussions are private. No final decisions have been made and Tokyo-based Takata continues to seek buyers, the people said.

Jared Levy, an outside spokesman for Takata, declined to comment, and Amy Fantini at Weil Gotshal did not immediately respond to messages seeking comment.