The manifold assembly (on left) where fuel hose connector and site gauge is has been leaking fuel for a while, and will eventually soak the tank when engine is running. Disregard the spillage around the fill cap, that's where I spilled some. Can't tell why but I assume there is a gasket under there or there could be a crack somewhere. I was given a part number for the manifold assembly but every site I look at says its no longer available or out of stock. Has anyone ever replaced one of these or do I have another option? I hate to get another tank because this one fits perfectly in the fuel/battery well in the back of my boat and it was expensive. It's an OMC Dura-tank.