Notes: 119717-22900 PISTON ASSY, 0.25 OS is original YANMAR product. 119717-22900 PISTON ASSY, 0.25 OS5 is commonly used in transmissions/axles/engines 3TNV76-GMA, 3TNV76-GMG, 3TNV76-GPGE, 3TNV76-HAGR, 3TNV76-KGD, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849