Notes: 714210-22620 PISTON W-RING OS.25 is original YANMAR product. 714210-22620 PISTON W-RING OS.255 is commonly used in transmissions/axles/engines L70V6-M1, L70V6CA1T1CA, L70V6GJ1R1AAS5, L70V6-PSU1, L70V6-PSUL1, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849