Replacement Briggs & Stratton Air Filter. Fits Briggs & Stratton 3-3.5 HP Vertical Shaft Engines, Series 92900 and Up. Air Filter Dimensions: 5-3/8" x 3-1/2" x 1-1/2" Item: BAF-111, 270579, bs-270579 O.E. Replacement Part Number: 270579 , 270579S , 4104 , 5009 , 5009B , LG270579 , LG270579S , M47949 , 100-529 , 100-5293 , 1371 Features Fits Briggs & Stratton 3-35 hp vertical shaft engines, series 92900 and up Replaces OE # 270579 Contains one air filter