I have a 1976 Mercury 850 85hp serial no. 4367785. I am wanting to put a water pump kit in this guy but I am concerned about getting the wrong kit. I would greatly appreciate some help to make sure I purchase the correct kit.
If you haven't already bought one here you go http://www.iboats.com/mall/partfind...gd_poid=110919&gd_row=30&**********=863834470
This is the kit I used on my 1977 merc 850. Just be sure the lower housing
is seated properly or it will overhaet at higher rpms, but run fine at idle.
sorry this may not work on yours I just looked at your serial#