Used-Good aftermarket WAI starter motor that fits Yanmar marine diesel engines including 1GM, 2GM, 3GM, and KM models from approximately 1980–1990. This starter replaces Yanmar part number 128170-77010 and equivalent references. Item is Condition A with clean housing, solid mounting points, and intact electrical terminals. Starter has been previously opened and handled but remains in Used-Good condition and functions as intended. Suitable direct replacement for compatible Yanmar marine engines. See photos for exact item and condition.