Notes: 142018 RING F2.5-D46.5-S2 is original CARRARO product. 142018 RING F2.5-D46.5-S25 is commonly used in transmissions/axles/engines 134055, 134056, 141429, 141536, 141791, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849