The Yanmar 19816252150 Key Assembly is a genuine OEM replacement part designed for a wide range of Yanmar marine engines. This essential component ensures proper ignition and secure operation of your vessel's engine. Manufactured to Yanmar's high-quality standards, it provides a precise fit and reliable performance for compatible models including 2GM20F, 3GM30F, 3JH2E, 3JH2TE, 3JH2TCE, 3JH3E, 3JH4E, 4JH2E, 4JH2TE, 4JH2HTE, 4JH2DTE, 4JH3E, 4JH3TE, 4JH3HTE, 4JH4E, 4JH4AE, 4JH4TE, 4JH5E, 4JH80, 4JH110, 4JH45, 4JH57, and 4JH60 series engines.