FitsBriggs & Stratton models 491588S, 491588, 4915885, 399959 and replaces OEM parts. Replaces:491588S, 491588, 4915885, 399959. Briggs & Stratton 3.5–6.5HP engines. Keep your engine running smoothly with thishigh-performance air filter, designed to providebetter airflow, improved fuel efficiency, and long-lasting durability.
