Notes: 171011-44301 PULLEY, TENSION is original YANMAR product. 171011-44301 PULLEY, TENSION5 is commonly used in transmissions/axles/engines 2TNE68-HIN, 3TNE68-LW, 3TNE84-GHN1, 4TNE84T-GHN1, 3TNE84-GHN1, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849