This trim/tilt is P/N 99659A21. It was overhauled by a Mercury dealer with a new motor and pump with less than two hours ago. It came off my XR4 which siezed up after an oil line came lose. The motor has been used in freshwater exclusively. ATTENTION! There is NO oil in the unit as UPS won't ship it with fluid in it. If you have any questions please don't hesitate to ask.