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HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings8T-7878: 2.8 x 22.7mm 90A NBR O-Ring
HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings8T-7878: 2.8 x 22.7mm 90A NBR O-Ring
8T-7878: 2.8 x 22.7mm 90A NBR O-Ring

Cat® 22.7mm Inner Diameter Leak-proof O-ring rubber seal for hydraulic valves, ensuring fluid containment and system efficiency.

Brand: Cat

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8T-7878: 2.8 x 22.7mm 90A NBR O-Ring
8T-7878: 2.8 x 22.7mm 90A NBR O-Ring
8T-7878: 2.8 x 22.7mm 90A NBR O-Ring
8T-7878: 2.8 x 22.7mm 90A NBR O-Ring
8T-7878: 2.8 x 22.7mm 90A NBR O-Ring

Cat® 22.7mm Inner Diameter Leak-proof O-ring rubber seal for hydraulic valves, ensuring fluid containment and system efficiency.

Brand: Cat

Warranty Information
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DiagramDescriptionSpecificationsCompatible Models
Specifications for part number 8T-7878

Units of Measure

USMetric
Cross Section Diameter (mm): 2.8
Material: NBR (90),NBR - Nitrile,Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.11
Inside Diameter (mm): 22.7
Inside Diameter (in): 0.894
Polymer: Nbr (nitrile Butadiene)
Material Hardness: 90a
Compatible With: Abrasion resistant; Alpha-Olefin base synthetic lubricants; Ethylene Glycol; Hydrocarbon fuels; Petroleum base lubricants; Silicone oils and greases; Water, water base engine coolants; ORFS, STORS seals
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Compatible Models for part number 8T-7878

FORWARDER

574

ROTARY/TRACK DRILLS

MD6640

INTEGRATED TOOLCARRIER

IT38G

PIPELAYER

572R II 572R

EXCAVATOR

M315 M318 M320

BACKHOE LOADER

446B

VIBRATORY COMPACTOR

CS-583

WHEEL LOADER

938G

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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