Husqvarna HG_EZT, RT RIGHT HAND Hydro Gear Zero Turn Transmission. Part #: 510375602, ZC-AHBB-3D8B-2DPX. This transmission worked when the mower ran a few years ago but when the engine stopped running on the mower this transmission just sat. That being said, this transmission has not been tested and doesn’t have a 100% guarantee it will work. The mower this transmission was pulled from only had 208 hours on it. Message me with any further questions!