That only fits MTD push (non-propelled) mowers with a 7/8 shaft, I don't know about throwing random adapters on decks they weren't meant for as the depth of the blade adapter can be different and the blade may end up too high or too low in the deck, you'd have to cross reference the original manufacturer and see if you can find an equivalent part for the other shaft diameter. Even adapters for the same manufacturer aren't always the same, I salvaged and adapter off an early 2000s MTD Yard Man mower to replace a bent adapter on a newer style MTD self propelled mower and the adapter was too tall and would not fit.