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HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings304-2218: 3.53 x 448.4mm 78A HNBR O-Ring
HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings304-2218: 3.53 x 448.4mm 78A HNBR O-Ring
304-2218: 3.53 x 448.4mm 78A HNBR O-Ring

O-Ring

Brand: Cat

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304-2218: 3.53 x 448.4mm 78A HNBR O-Ring
304-2218: 3.53 x 448.4mm 78A HNBR O-Ring
304-2218: 3.53 x 448.4mm 78A HNBR O-Ring
304-2218: 3.53 x 448.4mm 78A HNBR O-Ring
304-2218: 3.53 x 448.4mm 78A HNBR O-Ring

O-Ring

Brand: Cat

Warranty Information
Return Policy
DiagramDescriptionSpecificationsCompatible Models
Specifications for part number 304-2218

Units of Measure

USMetric
Cross Section Diameter (mm): 3.53
Material: HNBR - Hydrogenated Nitrile,HNBR (78),HNBR,Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.139
Inside Diameter (mm): 448.4
Inside Diameter (in): 17.654
Polymer: Hnbr (hydrogenated Nitrile)
Material Hardness: 78a
Compatible With: Abrasion resistant; Diesel fuels; Diester lubricants; Ozone; Petroleum oils, greases; Refrigerant HFC - 134a (Non-Freon); Silicone fluids; Steam; Water base engine coolants
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Compatible Models for part number 304-2218

TRACK-TYPE TRACTOR

D7E LGP D7E

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KeyKey
Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced