Notes: 121465-12650 CASE ASSY is original YANMAR product. 121465-12650 CASE ASSY4 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