AM General LLC | 22,886 followers on LinkedIn. Mission Ready ⭐ Future Driven | AM General designs, engineers, manufactures, supplies and supports specialized vehicles for commercial and military customers. The AM General business units also include two wholly owned subsidiaries, General Engine Products, a diesel engine manufacturer, and General Transmission Products, an automatic transmission manufacturer. As original designer and manufacturer of the famous HUMVEE® and HUMMER® H1 vehicles, and contract assembler of the H2, and MV-1, AM General has over 100 years of experience meeting the changing needs of the defense and automotive industries, supported by our skilled employees at major facilities in Indiana, Michigan, and Ohio, and a strong supplier base that stretches across 43 states.