Notes: 28620 O-RING 121 15 88X2 62 900033 is original CARRARO product. 28620 O-RING 121 15 88X2 62 9000335 is commonly used in transmissions/axles/engines 140483, 140485, 149569, 149570, 149570, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849