I have an 85HP Force motor on a 1989 Spectrum 1700 I was going to replace the impeller but I got the wrong one and the pictures they show of the kits here at Iboats do not even come close to what I have I compared my unit to all that they have listed and still cant seem to find the one I need. So the only numbers I can find on the powerhead are on the intake manifold and they are 498167. I have no reason to think this unit is not original to the boat so any help would be greatly appreciated.