Neapco Holdings makes the parts that get vehicles moving. It manufactures driveshafts, suspension springs, propeller shafts, aluminum die castings, and driveline components for automotive and heavy-equipment OEMs (it is a major supplier to Ford) and the aftermarket. Neapco serves the automotive, commercial vehicle, farm equipment, and construction machinery sectors. It also makes components for non-vehicular applications such as irrigation systems, mill processing equipment, and hydraulic pump drives. The Neapco name comes from New England Auto Parts Corporation, when founder D. K. Bullens established the company in 1921. Its headquarters eventually moved to Pennsylvania and then in 2011, Michigan.