Notes: 28544 O-RING 4800 2-266 202.79x3.53 is original CARRARO product. 28544 O-RING 4800 2-266 202.79x3.532 is commonly used in transmissions/axles/engines 387788, 387788, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849