General description Lawn mower air filter designed to fit Briggs Stratton engines, specifically models 399959, 491588, and others. This high-quality filter is made from mixed fiber, providing excellent filtration and lower airflow resistance, which helps to capture fine particles and extend the engine's service life. Technical specifications Compatible with Briggs Stratton models: 399959, 491588, 491588S, 494245, T494245, 4101, 5043, 5043B, 5043D, 5043H, 5043K Fits 3.5-6 HP Quantum engines Also suitable for Honda models: GC135, GC160, GC160A, GC160LA, GC190A, GC190LA, GCV135, GCV160A, GCV160LA, GCV190A Compatible with various other brands and models including John Deere, Toro, Ariens, and more Compatibility and accessories Compatible with John Deere: AM116236, PT15853, LG491588JD, LG491588, LG491588S Compatible with STENS: 102-549, 100-438 Compatible with SIERRA: 7-02257 Compatible with CRAFTSMAN: 3364, 33644 Compatible with ARIENS: 21529800 Compatible with LESCO: 050 007 Compatible