Notes: 124772-66750 NUT, LOCK M12 is original YANMAR product. 124772-66750 NUT, LOCK M125 is commonly used in transmissions/axles/engines 3TNE68-AC, 3TNE68-MY, 3TNE74-NS, 3TNE74-DG, 3TNE74-DGD, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849