Notes: 2074260 P.O.22177 O-RING 4487 2-249 123.42x3.53 is original CATERPILLAR product. 2074260 P.O.22177 O-RING 4487 2-249 123.42x3.531 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849