Notes: 6000128499 O-RING 3450 2-157 113.97x2.62 NBR is original CLAAS product. 6000128499 O-RING 3450 2-157 113.97x2.62 NBR1 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849