For almost 100 years, ACDelco has been sparking the automotive industry and firing customer enthusiasm with automotive products built with a pure passion for the automobile. As you might expect, it began as one man's hobby. But you may be surprised to discover ACDelco's integral part in American history with ties to the first self-starting automobile and this country's first moonwalk.Today ACDelco products are chosen the world over, an accomplishment only the past can explain.