Notes: 24321-000800 O-RING, 1AG80.0 is original YANMAR product. 24321-000800 O-RING, 1AG80.05 is commonly used in transmissions/axles/engines 3TNE82A-EPM, 3TNE82A-EPM, 4TNV88-BNYE3T, 4TNV88-BNYE3, 4TNV88-BNYE3D, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849