Hi. I have a mariner 115 from around '88.<br />But the mechanic says i need to be sure to get the right part for powertrim.<br />I have the serial number, but that doesn't tell him anything - he says!<br />Is he not all there or should he just not be repairing mariner?<br />The serialno:OB328739<br />If the first letter is a O or zero, i don't know.<br />If anyone could tell me what year this number represents, i would be most thankfull.<br />-Mikkel, Denmark.