Hayward has used a few different motors on there 1 HP Super Pump over the years, however this switch does work on many motors including most of which were used on the 1 HP Super Pump. I would double check your measurements of your switch vs. the measurements we have here 2"DIA X 1-1/4" OVAL X 3-1/8"H and if they match up than I would feel relatively confident this part would work for you.
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