PULLEY KIT YANMAR 2GM20-F 3GM30-F

This kit is a serpentine pulley conversion solution designed for specific Yanmar marine diesel engines. It facilitates the installation of larger alternators by using a multi-groove belt, improving load transfer and reducing engine noise and vibration. It's intended for use with Balmar 6 series or XT series alternators. For stock Hitachi alternators, the Hitachi Pulley 48-AM-97 is required for alignment. The kit may work with other alternators having a 17mm shaft diameter, though fitment/alignment are not guaranteed and might require an alternate pulley (48-AM-106) and different belt length.