Eckydrifter That No on the label on the airfilter top is all you need. Bruce will be able to tell you from that number exactly which model you have. That is so long as somebody has not taken that filter off another mower at sometime .If the mower has beenkicking around a while there is always this possibility but I am sure Bruce will be able to give you enough clues to recogize the rest of it Cheers Joe
