Intex Excursion 5 is an inflatable boat with an Intex trolling motor model 68631 a/k/a bm4212. The original prop is a little chipped after years of use. Saw many props on Amazon, bought a Motorguide Katana, it was advertised to fit a 3.5" hub, which Intex has. Didn't fit, the hole is a bit smaller, doesn't fit onto the bolt. Thought this was a forum for inflatable boat discussion. If anyone has the Intex trolling motor (I think there is only one by Intext) and was able to find a better prop that fits it, would appreciate a link, or make/model.