In this video I am going to show you how to replace the water pump impeller on a modern 20hp Tohatsu 4-stroke. This engine is a 2021 or 2022 but the process should be the same for any similar years and may even be the same for the 9.9 and 15hp tohatsus in similar years. The owners manual says to have the impeller replaced every 200 hours or 1 year and it also says to have it done by a dealer. Also, I am not a professional and this video is just for reference.
