Notes: 171002-66830 SCREW is original YANMAR product. 171002-66830 SCREW5 is commonly used in transmissions/axles/engines 2TNE68-DB, 2TNE68-EDB, 3TNE68-ADCL, 3TNE68C-ENP, 3TNE74C-ENP, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849