Fits B&S Lawn Mower Air Filter 491588S 491588 4915885 399959, part number. 4101 5043 5043A 5043D 5043H 5043K. Fits 3.5-6.5 HP Engines, 625e 675ex 725ex 625-675 Series Components. [Fits Multi-Brand Tractor Lawn Mowers/Air Cleaners. Al-Ko 470/520, PLM5121, Gutbrod, Vikings, Sabo, Gardol G553CME, Toro, Champion and Troy Mowers Built, Craftsmen and other good alternatives to air filters, Honda, Husqvarna, Yardman, lawn managers, etc. [More Compatible Models] Lawn Mower/Tractor Air Filter: Fits John Deere Model JD-pt15853 lg491588, Stens 102-549, Oregon 30-710 30-927, Rotary 2838, Ariens 21529800, Champion 10023 replacement filter element for original air filter. [High Quality Parts] Filter paper filtration efficiency reaches 99.5%, and the back is protected by a metal grid. The entire part is surrounded by a foam rubber frame to reduce noise. Includes 1 Briggs Stratton 491588S air filter. The size is 13.2cm*11.2cm*2.3cm. It conforms to OEM standards, so it is compact and easy to install.