Piston pin piston ring and seeger kit lawn tractor lawn mower compatible BRIGGS STRATTON D. cylinder (mm): 68,30 For models: BRIGGS STRATTON 121700 , 121800 , 122700 , 122800 , 123700 , 123800 , 124700 , 124800 , 127700 , 128800 , 12A800 , 12B800 , 12E700 , 12E800 , 12F700 , 12H700 , 12H800 , 12K700 , 12M800 , 12S700 , 12S800 , 12T700 , 12T800 , 127800 , 128700 , 12F800 , 12U800 , 12V800 Code: 30270639 Original part number: 493262 BRIGGS STRATTON NS - ah m