Notes: 30907100 O-RING 4112 2-216 28.17x3.53 is original AGCO-MF-VALTRA product. 30907100 O-RING 4112 2-216 28.17x3.531 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849