Notes: 714770-22581 PISTON ASSY, 0.50 OS is original YANMAR product. 714770-22581 PISTON ASSY, 0.50 OS5 is commonly used in transmissions/axles/engines L48AE-DEGYC, L48AE-DEYC, L48AE-DGYC, L48AE-DYC, L48AE-SYC, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849