Piston Assembly for Briggs & Stratton Models: 220000 - 222000, 252000 - 257000, 280000 - 286000, 40000, 402000 - 422000. 10-12.5 & 14-18 HP Engine Models. Includes Rotary #8827 Rings.Replaces:BRIGGS & STRATTON 391288BRIGGS & STRATTON 394663BRIGGS &...