I'm unsure if the old double cylinder tilt trim replacement unit made by Dole Fluid Power company of Hutching Kansas will fit my motor. Unit no. S-P500 is supposed to fit a 1977 40 hp Mercury outboard. I have a 1977 150 HP OB that is need of repair and I'm unsure if it will work. So I ask the boating guru's of the internet for your assitance again. Thanks in advance. Mike
