Oil pan gasket lawn tractor mower mower compatible BRIGGS STRATTON For models: BRIGGS STRATTON 258700 , 259700 , 220700 , 251700 , 252700 , 253700 , 254700 , 255700 , 256700 , 257700 Part No.: 30270090 Original part No.: 271702S , 271702 , 270808 , 4183 BRIGGS STRATTON NS - ah m