Notes: 6193402M1 O-RING 209.14x3.53 VITON 90 SHORE is original MECALAC product. 6193402M1 O-RING 209.14x3.53 VITON 90 SHORE1 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849