SEI MARINE PRODUCTS- Yamaha Prop Nut Kit 6G5-W4599-00-00 115 130 150 175 200 225 250 HP This prop nut kit replaces OE#: 6G5-W4599-00-00 and fits Yamaha outboard lower units with the following applications: V4 standard rotation 1984-current, V6 standard rotation 2.6L 1984-current, 2.6L counter rotation 1992-current, V6 standard rotation 3.1 & 3.2L 1990-2006, and 3.1 & 3.2L V6 counter rotation 2004-current.