Notes: 93086.7 O-RING 202.79x3.53 VITON 90 SHORE is original DOOSAN product. 93086.7 O-RING 202.79x3.53 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