It's an aftermarket carburator, from China, off Amazon. This exact model, still working well on its 2nd summer btw, is now discontinued and it looks like they made improvements to the new model. Tundermingo is this specefic brand, search "tundermingo marine carburator" on Amazon or similar and you should see what you need. Actually just also changed fuel filter and small carburator fuel filter today, adjusted idle on carb slightly, and now purring like a kitten!