Notes: 28648 O-RING 2-31 44.17X1.78 is original CARRARO product. 28648 O-RING 2-31 44.17X1.785 is commonly used in transmissions/axles/engines 339080, 357456, 380534, 380925, 386461, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849