Yamaha Lower Unit Assembly F15/F20 6AH-45300-00-8D is a top-quality replacement part designed to ensure your Yamaha F15 or F20 outboard motor operates at its peak. Crafted from high-grade materials, this lower unit assembly provides exceptional durability and performance, even in harsh marine environments. Its precision engineering ensures optimal power transfer and efficiency, making your boating experience smooth and reliable.. The 6AH-45300-00-8D lower unit assembly features advanced corrosion-resistant properties, ensuring long-lasting protection against the elements. Designed for an easy and seamless fit, this genuine Yamaha part guarantees hassle-free installation and consistent performance. Whether you're fishing, cruising, or engaging in watersports, this lower unit assembly will keep your Yamaha outboard running smoothly, providing you with the reliability and confidence you need on the water.. Applicable engine models for 6AH-45300-00-8D: F15SEHA - 2016-2018 F15SMHA - 2016-20