Notes: 714870-22620 PISTON W-RING OS.25 is original YANMAR product. 714870-22620 PISTON W-RING OS.255 is commonly used in transmissions/axles/engines L40AE-DE, L48AE-SETM, L60AE-SETM, L70AE-SE, L70AE-SETM, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849