Notes: 26756-100002 NUT, LOCK M10 is original YANMAR product. 26756-100002 NUT, LOCK M105 is commonly used in transmissions/axles/engines 2TNE68-HG, 4TNE84-AF, 4TNE84-BAG, 4TNE84-EAF, 4TNE84-P, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849