Notes: 26366-120002 NUT, M12 is original YANMAR product. 26366-120002 NUT, M124 is commonly used in transmissions/axles/engines 4TNV98-Q2FY, 4D98E-2QFY, 4D98E-2QFY, 4TNV98-Q2FY, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849