Notes: 26366-100002 NUT, M10 is original YANMAR product. 26366-100002 NUT, M105 is commonly used in transmissions/axles/engines 2TNE68-BL, 2TNE68-BL2, 2TNE68C-BG, 2TNE68C-EBG, 2TNE68-DM, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849