[Generic Model Air Filter] compatible with Briggs & Stratton 491588s 491588 4915885 399959 push lawn mower, bs- 4101 5043 5043A 5043D 5043H 5043K. Fit 3.5- 6.5 HP quantum small engine, 625 675 725 625-675 e/ex series element.[Wide Use Parts] compatible with Toro 20332 20334 20330, Craftsman, Troy Built walk behind lawn mower / tractor air filter. Replace part number of air cleaner.Air filter, like our nose, is the first "hurdle"of the air entering the engine, its role is to filter out sand in the air as well as some suspended particles to ensure that the engine is working properly, prevent engine wear. Meanwhile air filter also has a mute functionIn order to get the normal functioning of the engine, there must be a lot of clean air inhalation. If the harmful substances in the air (dust, resin, aluminum, iron acidification, etc.) is sucked in the engine, the cylinder, piston assembly will increase the burden, which will make them wear too much, so that the engine oil is interfuse, cause more substantial wear, lead to deterioration in engine percompatible withmance and shorten engine lifeColour:Blue+whiteMaterial:Plastic + filter paperSize:13 x 11cmPackage Contents:8 * Air filters compatible with Briggs & StrattonOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.