The Tecumseh 590689B is a genuine 12-volt, 10-tooth starter motor designed for reliable engine starting. This counter-clockwise rotation, 3-bolt mount starter is an OEM replacement for various Tecumseh OHV and TVT series engines, including OHV110, OHV115, OHV120, OHV125, OHV130, OHV135, OHV140, OHV145, OHV150, OHV155, OHV160, OHV165, OHV170, OHV175, OHV180, OV358EA, OV490EA, TVT691, and VTX691 models. It ensures proper fit and performance, replacing previous part numbers 590689 and 590689A.