For John Deere Engine: 6068, 6081, 6090 For John Deere Excavator: 200LC, 210, 210CW, 370C, 330LC For John Deere Logger: 2054, 2154D, 2454D, 2954D, 3754D. Aaha-parts specializes in electrical parts which fit various heavy equipment. Electrical parts are used to drive the mechanical components to work properly. They are the drive control part of the heavy equipment.