Lawn tractor mower head gasket compatible BRIGGS STRATTON For models Briggs Stratton 401500 , 402500 , 403500 , 403600 , 404500 , 405500 , 405700 , 406500 , 406600 , 406700 , 407500 , 407600 , 407700 , 409700 , 40F700 , 40G700 , 40H700 , 40N700 , 40N800 , 40R500 , 40R600 , 40R700 , 40R800 , 40S700 , 40S800 , 44L700 , 44L900 , 44M700 , 44M900 , 44N600 , 44N700 , 44N800 , 44P700 , 44P900 , 44Q700 , 44Q900 , 44R500 , 44R600 , 44R700 , 44R800 , 44S500 , 44S600 , 44S700 , 44S800 , 44S900 , 44T600 , 44T700 , 44T800 , 44T900 , 44U500 , 44U600 , 44U700 , 44U800 Code: 30271153 Original part number: 693997 , 690962 ah m