Notes: 20G-14-K3330 O-RING 3575 2-162 145.72x2.62 is original KOMATSU product. 20G-14-K3330 O-RING 3575 2-162 145.72x2.621 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849