General Motors said it will invest $325 million in its Warren, Michigan, transmission factory; a move expected to create or save 418 jobs. The plant will get equipment to build transmission parts for future electric vehicles.

GM would not say how many of the 418 jobs will be new positions. But a summary of its new four-year contract with the United Auto Workers says 360 jobs will be added at the plant for a new transmission that originally was to be built in Mexico. The union said the jobs were brought to the U.S. as part of the new contract.

The Warren factory currently employs 679 workers. It makes transmissions for GM's large crossover SUVs, the Chevrolet Traverse, Buick Enclave and GMC Acadia, as well as the Chevrolet Malibu sedan.