About 2,500 United Auto Workers members ratified a new three-year labor contract with truck and auto components maker Dana Holding Corp., the union said.
The deal covers workers at 13 plants in nine states, giving them pay raises and a profit-sharing plan.
It is the first agreement between the UAW and Dana since the supplier emerged from Chapter 11 bankruptcy in January 2008, the union said.
A spokesman for Dana, which makes axles, driveshafts and transmissions, declined to comment on the vote, Reuters reported. The contract expires in June 2014.