This Mercury MerCruiser Quicksilver Serpentine Belt Kit is designed for Alpha Bravo 807901A3 models. It is a high-quality replacement part that ensures your boat's sterndrive motor runs smoothly and efficiently. The kit includes a serpentine belt, belt clamp, and pulley, all made specifically for MerCruiser boats. With this kit, you can replace the old or damaged serpentine belt and enjoy a more reliable and consistent performance. It is a must-have for any MerCruiser owner who wants to keep their boat's engine running at its best. Buy now and experience the difference in your boat's performance.