Replacement Briggs & Stratton Air Filter. Fits Briggs & Stratton 6 - 6.5 HP Vertical Shaft Engines. Contains one Filter and Pre-Cleaner Filter. Air Filter Dimensions: 4" x 2-3/8" x 2-1/4" Item: BAF-125, 497725, 273185 O.E. Replacement Part Number: 497725 , 497725S , 30-029 , 100-184 , 8815 Features Fits Briggs & Stratton 6-6.5 hp vertical shaft engines Replaces OE # 497725 Contains one filter and pre-cleaner filter OE # 273185