More than 300 workers walked out Aug. 25 after they turned down the companys previous offer.
Under the new contract, workers will receive raises.
A UAW official noted that workers did not get everything they sought, but did get more than what they had earlier.
Workers went on strike after company officials sought more concessions in the areas of overtime pay, co-pay hikes in health insurance and the hiring of additional temporary workers.
The UAW official said that employees had agreed to concessions in the previous contract but that company officials still asked for more from the workers. Employees noted that the company posted $16 billion in revenue in 2012.
TRW, formerly known as Ross Gear, is based in Livonia, Mich., and makes power-steering gears for trucks.