A well-sealed lower unit is the difference between smooth, efficient operation and costly repairs. The Yamaha Oil Seal, S-Type (93101-20M07-00) is built to keep oil where it belongs while blocking out water and debris that can cause internal damage. Designed for Yamaha 20-45 HP outboards, this high-quality seal ensures your engine runs at peak performance, trip after trip.. Built for Protection & Longevity. Prevents Oil Leaks - Forms a tight, reliable seal to keep lubrication intact and prevent costly fluid loss.. Guards Against Water Intrusion - Blocks moisture and contaminants from entering the lower unit, protecting gears and bearings from corrosion and wear.. OEM Fit & Durability - Manufactured to Yamaha's exact specifications, ensuring a precise fit and long-lasting reliability.. Essential for Routine Maintenance. Compatible with Yamaha 20-45 HP outboards, this oil seal plays a critical role in maintaining lower unit integrity and extending engine life. Regular inspections and tim