Notes: 714870-22581 PISTON ASSY, 0.50 OS is original YANMAR product. 714870-22581 PISTON ASSY, 0.50 OS5 is commonly used in transmissions/axles/engines L70AE-DEGYC, L70AE-DEYC, L70AE-DGYC, L70AE-DVYC, L70AE-DYC, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849