Order 317-2403 CAT SEAL O RING At Wholesale Prices, acquire heavy-duty parts from the largest dealer and supplier.Specifications:"Cross Section Diameter (in): 0.21 Inside Diameter (in): 18.5 SAE AS568 Dash Size: 0 Outside Diameter (in): 480.66 Hardness (Shore A): 70 Material: Silicone (70),VMQ - Silicone,Silicone (VMQ) Material Description: Silicone (VMQ) rubber is capable of service temperatures of -55 to 150C and is resistant air. Silicone rubber should not be used in applications that require resistance to fuel, oil and coolants. Coating: None Color Notes: Actual o-ring color may differ from image. Applications: Electrical system seals; High temperature air seals; High temperature static grease seals Not Compatible With: Acetone; Aromatic hydrocarbons; EP oil; Fuel oil; Gasoline; Ketones; Low aniline point oils; Petroleum oils; Steam & hot water Compatible With: Air; Diacetone alcohol; Ethylene glycol; Extreme high/low temperatures; High aniline point oil; Iso-butyl alcohol; Ozone & UV light; Polyglycol Temperature (°F): -50 - 300 Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image."Compatible Models:"TRUCK 797F 797B MOTOR GRADER 404F-22 14M 14M3 14M-3 14"