 Beginning in 1987, Dunn-Right Incorporated of Anderson, South Carolina has made a kit to perform the conversion of a VW engine to a compressor.Volkswagen AG has officially offered these air-cooled boxer engines for use in industrial applications since 1950, lately under its Volkswagen Industrial Motor brand.Available in , , , , and outputs, from displacements of to , these Industrial air-cooled engines were officially discontinued in 1991.