Notes: 106150-59510 PIPE, FUEL RETURN is original YANMAR product. 106150-59510 PIPE, FUEL RETURN4 is commonly used in transmissions/axles/engines 3TNE68-SW, 3TNE68-USW1, 3TNE68-USW1, 3TNE68-SW, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849