This listing is for a rear door assembly, AYP part #401814X428.  It was removed from a Weed Eater model #961340001 07 21 inch mower, with a Briggs and Stratton model #10T802-0716 E1 engine.  It may fit other models as well.  Please confirm that this part will fit your equipment before purchase.  It is in good condition.  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!