Federal-Mogul Powertrain says it has bought TRW's ownership shares in two engine components joint ventures, completing its acquisition of TRW's Engine Components business.

The operation, headquartered in Barsinghausen, Germany, employs nearly 4,000 people globally.

"We are pleased to complete the acquisition of TRW's engine components business, which strengthens Federal-Mogul Powertrain's market position as a leading developer and supplier of core engine components," said Federal-Mogul Powertrain and Co-CEO, Rainer Jueckstock.

"It's been several months since we acquired the majority of the business and today completes the process with the addition of the valvetrain operations in Tennessee and Thailand."