This listing is for a crankshaft, Briggs and Stratton part #262340.  It was removed from a model #128-476B190 White Lawn Boss 21 inch self propelled mower with a model #114702-0150-01 Briggs and Stratton Max series engine.  It may fit other models as well.  Please confirm that this part will fit your mower before purchase.  It is in nice condition and came out of a good running engine.  I will combine shipping when possible.  Payment within 2 days of purchase.  If you are looking for a part that I don't have listed please ask, I might have one.  Thanks for looking!