Briggs and Stratton Air Cleaner Gasket part# 691917 has and outside diameter of 1-3/4" and an inside diameter of 1-1/2'. Following is a list of some of the model series that use this gasket; 194700, 195700, 196700, 197700, 198700, 202300, 202400, 203400, 204300, 205300, 205400, 206400, 20S200, 210400, 210700, 210800, 212300, 212700, 212800, 212900, 213400, 214700, 214900, 215700, 215800, 215900, 216700, 216800, 216900, 217700, 217800, 217900, 218700, 219700, 219800, 219900, 21A700, 21A800, 21A900, 21B700, 21B800, 21B900, 21D800, 21R500, 21R600, 21R700, 21R800, 21S200, 280H00, 280J00, 281H00, 282H00, 283700, 283H00, 284700, 284H00, 285H00, 286700, 286H00, 287700, 289700, 28AH00, 28B700, 28CH00, 28D700, 28M700, 28N700, 28P700, 28Q700, 28R700, 28S700, 28T700, 28U700, 28V700, 28W700, 310700, 311700, 312700, 313700, 319700, 31A500, 31A600, 31A700, 31A800, 31B700, 31C700, 31D700, 31E500, 31E600, 31E700, 31E800, 31F700, 31G700, 31H700, 31K700, 31L700, 31M700, 31M800, 31M900, 31N600, and 31N700. There may be other models that use this part that we do not have listed here. All Briggs and Stratton parts are type number and sometimes code number specific. Please refer to a parts breakdown for your specific model, type, and code numbers to assure that this part will work on your motor. Sorry, but we only have one in stock at this time.