Lawn tractor head gasket lawn mower compatible BRIGGS STRATTON For models Briggs Stratton 120500 , 120H00 , 120K00 , 120L00 , 120T00 , 121H00 , 121K00 , 122H00 , 122K00 , 122L00 , 122M00 , 122T00 , 123H00 , 123J00 , 123K00 , 124H00 , 124K00 , 124L00 , 124T00 , 125H00 , 125K00 , 126K00 , 126L00 , 126M00 , 126T00 , 127700 , 127800 , 127H00 , 128700 , 128800 , 128H00 , 128L00 , 128M00 , 128T00 , 129700 , 129800 , 129H00 , 12F700 , 12F800 , 12G700 , 12G800 , 12H700 , 12H800 , 12J700 , 12J800 , 12J900 , 12L800 , 12L900 , 12M900 , 12P800 , 12Q800 , 12U800 12V800 , 12W800 , 12X800 , 12Y800 , 12Z800 Code: 30271063 Original part number: 799875 ah m