5 Pack 491588S Air Filter, Compatible with Briggs Stratton 491588 4915885 Flat O
Compatible with B-S: Model # 491588S 491588 4915885 399959 push lawn mower air filter, part # 4101 5043 5043A 5043D 5043H 5043K. Item model number 491588S. OEM Part Number 491588S. Replace for part number of Toro, Troy Built, Craftsman, Honda walk behind lawn mower / tractor genuine air filter.