Notes: 119C10-22900 PISTON ASSY, 0.25 OS is original YANMAR product. 119C10-22900 PISTON ASSY, 0.25 OS5 is commonly used in transmissions/axles/engines 3TNM74F-SAMW, 3TNV74F-NDKTF2, 3TNV74F-NDYA, 3TNV74F-NPFN, 3TNV74F-SDKTF2, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849