This Sierra Marine oil filter is a great addition to your boat's cooling system. It is designed for use with sterndrive motors and components, and is a must-have for anyone looking to maintain their boat's engine performance. The filter is made by Sierra, a trusted brand in the boating industry, and is compatible with a wide range of manufacturers part numbers. In addition, this oil filter is a CLOSEOUT SALE item, with no returns accepted. It is important to note that this filter is not compatible with all boats or engines, so be sure to consult your owner's manual or mechanic if you are unsure about compatibility. Thanks for considering this Sierra Marine oil filter, and please remember that it is a great choice for anyone looking to maintain their boat's engine performance.