Piston with Kolben segments Compatible with Briggs Stratton engine For models: 220400 , 220700 , 222400 , 251400 , 251700 , 252400 , 252700 253400 , 254700 , 255700 , 258700 , 280700 , 281700 , 282700 285700 , 28A700 , 28C700 , 401400 , 401700 402700 , 421400 , 421700 , 422700 DIMENSIONS : Size: +0.010" Cylinder diameter: 87.55 mm Bolt diameter: 20.20 mm Reference code: 3-156 Original part number: 391287 , 393343 , 394662 , 498585 , 499957 , 394958 BRIGGS STRATTON