Notes: 42T-22-H0P97 O-RING 202.88x2.62 - 3800 2-171 is original KOMATSU product. 42T-22-H0P97 O-RING 202.88x2.62 - 3800 2-1711 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849