Notes: 714320-22620 PISTON W-RING OS.25 is original YANMAR product. 714320-22620 PISTON W-RING OS.255 is commonly used in transmissions/axles/engines L100N6DA1F1AA, L100N6FJ1P1AA, L100N6CA1T1AA, L100N6AJ1R2AA, L100N5EB1C5HAEP, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849