Transmission Bearings Service Kit MA5 231788 231790 237223 237317 312146 for 106/205/306/206/207/405/309/1007 This service kit contains transmission bearings designed for use with specified models.The set includes part numbers MA5, 231788, 231790, 237223, 237317, and 312146.Components are engineered to fit applications designated as 106, 205, 306, 206, 207, 405, 309, and 1007.Each bearing is built to standard specifications for performance in transmission systems.The kit supports maintenance and repair of compatible units. This replacement part is manufactured independently.All brand references are used solely to denote compatibility with listed models.