This product is designed to fit Yamaha outboard motors with 55-200 HP V6 engines. It is a high-quality oil seal that ensures no oil leaks from the shift shaft lower unit gearcase. The DD type oil seal is made by YiheoZux and has a Mallory P/N of 9-76423. The manufacturer part number is 93106-09014-00 and the Mercury P/N is 26-82257M. The Sierra P/N is 18-0267. This product is perfect for anyone who wants to keep their Yamaha outboard motor running smoothly. It is easy to install and ensures a tight seal for the gearcase. The oil seal is made specifically for the lower unit and is a genuine YiheoZux product.