Hey Bartles. There are literally tons of used B&S flathead verticals still out there just waiting for a fresh start on a late model rider. If you have the usual 1"x3" shaft on yours it's likely a direct swap with the OHV. It's hard to beat an old 11 or 12HP Briggs flathead vertical. They can wear out lawn tractor drivetrains and mowing decks long before the engines ever give up. I've found they're also great replacements on things that came with the single cylinder Kohler Courage engines as long as the shaft matches.
