Notes: 24351-020250 O-RING 1A S-26.0 is original YANMAR product. 24351-020250 O-RING 1A S-26.05 is commonly used in transmissions/axles/engines 2TNE68-CDM, 2TNE68-CDM, 2TNE68-CMC, 2TNE68-CMC, 2TNE68-DM, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849