1、Applicable Model: The driveshaft housing seal kit is replacement for Mercruiser Stern Drive Alpha One Gen II. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2、OE Number: The part number for reference are 88397A1, 26-88397A1. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3、High Strength Materials: Upper driveshaft housing seal tool is made of sturdy rubber and metal alloy, high hardness and strength, resistant to erosion and oxidation, ensuring longevity and superior performance. 4、Enhanced Performance: Offers secure fit and reliable function, designed with precision for optimum performance. The reliable seal will prevent leakage and provide excellent protection for your boat driveshaft housing. 5、Easy Installation: The seal kit includes everything you need for convenient installation without any hassle. No extra tools required, making your driveshaft housing maintenance easy and efficient.