FITMENT NOTESSP7196807 (8 bolt, 17 teeth) for 2 Speed machines (S/N A3P011001 - A3P016160 A3P016162 - A3P016406, A3P016458 A3P111001 - A3P112485 1MLT11001 & above, 1MLT11001 - 11010 T1ML11001 & Above A3P016407 - A3P016457 A3P016459 - A3P019999 A3P112486...