Notes: 129155-77810 REGISTER is original YANMAR product. 129155-77810 REGISTER5 is commonly used in transmissions/axles/engines 2TNE68-EIK, 3TNE68-EIK, 3TNE68-NTB, 3TNE74-ENYBC, 3TNE74-NYBB, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849