Notes: 27310-055000 COTTER is original YANMAR product. 27310-055000 COTTER5 is commonly used in transmissions/axles/engines 2TNE68-BL, 2TNE68-BL2, 2TNE68C-BG, 2TNE68C-EBG, 2TNE68C-KG2, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849