Notes: 114320-22150 RING, PISTON 0.50 OS is original YANMAR product. 114320-22150 RING, PISTON 0.50 OS5 is commonly used in transmissions/axles/engines L100V1-RESA2, L100V5-GEHC, L100V5EF1T1AAS1, L100V5EL2T9HAS2, L100V6-M1, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849