Yamaha Motor Co., Ltd. 25Y-11601-00-00 Piston Ring Set

The Yamaha 25Y-11601-00-00 Piston Ring Set is a heat-resistant alloy sealing kit built for Yamaha engine combustion systems and is sized STD. It installs in the piston grooves to seal between the piston and cylinder wall, delivering compression retention and oil control to support consistent engine performance. This ring set is used in motorcycles, scooters, and recreational vehicles that require reliable sealing for proper combustion and oil regulation. Designed for Yamaha engine systems, it is intended for maintenance, replacement, or retrofit to restore engine compression and overall efficiency. Common replacements include Yamaha 25Y-11601-10-00, 2H7-11601-00-00, and 3Y1-11601-00-00.