Category Snowmobile/Ski DooSki Doo - Snowmobile Piston Kits Back Piston Ring R09-765 Snowmobile Parts & Accessories Type: STD 01 (0.25) 02 (0.50) 03 (0.75) 04 (1.00) Viewer:250 Item No: R09-765 Fits: Ski-Doo TNT 340 1977 You May Also Be Interested In Piston Ring R09-764 Piston Kit 09-756 Cylinder sleeve 496-44210-00 Top End Gasket Kit HS-710142C