This alternator is a direct-fit for the Yanmar LY3 engine. It comes with a multi-groove serpentine pulley already installed, and lines up perfectly with the factory drive belt.
94LY-Series alternators feature oversized components for better cooling and longer life. Rugged cast aluminum cases. Extra-heavy custom windings deliver excellent output response. A proven workhorse in systems supplying larger battery banks and house electrical loads. One year limited warranty.