Notes: 28193 O-RING 3550 2-161 139.37x2.62 - is original CARRARO product. 28193 O-RING 3550 2-161 139.37x2.62 -5 is commonly used in transmissions/axles/engines 135100, 136065, 138742, 139058, 139059, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849