Notes: 24311-000150 O-RING, 1AP15.0 is original YANMAR product. 24311-000150 O-RING, 1AP15.05 is commonly used in transmissions/axles/engines 2TNE68-BL, 2TNE68-BL, 2TNE68-BL2, 2TNE68-BL2, 2TNE68C-BG, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849