Notes: 119E11-22900 PISTON ASSY, 0.25 OS is original YANMAR product. 119E11-22900 PISTON ASSY, 0.25 OS5 is commonly used in transmissions/axles/engines 3TNV80F-NXDGZ, 3TNV80F-NXDKTF, 3TNV80F-NXDYA, 3TNV80F-SDWB, 3TNV80F-SNLY, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849