Research shows that this 303K11 magneto bracket fits the 3HP Up Field & Brundage engines often tagged as sattley. The 2 mounting holes measure just a little over 3 on centers. The 4 holes for where the magneto mounts measure 2″ x 2″ on centers. This bracket shows some serious rust and pitting however the movable parts are not stuck. The armature shaft moves freely and so does the timing retard/advance lever. The little trip roller shows a lot of wear and may possibly need replacing. The bracket has no welds or repairs. The primer plug is very rusted and the Oiler slot is rusted heavily as well. This bracket will require a little work im sure for best results. Please see pictures for the absolute best description.