I have a johnson 90 cover on my engine but the model #is 115999R and the serial #is J004735. I am told this is a 115 HP. My lower unit has several cracks near the prop and I need to replace it does anyone know what year models will work with this one there is one on ebay that I have asked about and the seller says 79' thru 90' will bolt up and work. ANY ADVICE?? Thanks...
