Notes: 28161 O-RING 4150 2-222 37.69x3.53 is original CARRARO product. 28161 O-RING 4150 2-222 37.69x3.535 is commonly used in transmissions/axles/engines 134998, 137288, 137786, 140296, 140297, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849