Category Snowmobile/Other Back Piston Kit 09-661 STD Snowmobile Parts & Accessories Type: STD 01 (0.25) 02 (0.50) 03 (0.75) 04 (1.00) Viewer:489 Item No: 09-661 STD Fits: Cuyuna 1974-1978 You May Also Be Interested In Piston Ring R09-8043 Piston Kit 09-8043 STD (Right Side) Gasket 27-195982 Complete Gasket Kit 09-711010