Rotary 6726 Piston Assembly 10-12hp (+010) B&S by Rotary $29.85 Sold out 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out PRODUCT INFORMATION Type Other PRODUCT DESCRIPTION DESCRIPTION Fits B&S 10 thru 12 HP Models: 251000, 252000, 280700 Series. Includes Rotary #6773 Rings. (*Cast Iron Cylinder). REPLACES OEM B&S 391287, 499957