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BackHomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings7X-4781: 1075mm Inside Diameter Seal-O-Ring
BackHome
Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings
7X-4781: 1075mm Inside Diameter Seal-O-Ring
7X-4781: 1075mm Inside Diameter Seal-O-Ring
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7X-4781: 1075mm Inside Diameter Seal-O-Ring
7X-4781: 1075mm Inside Diameter Seal-O-Ring
7X-4781: 1075mm Inside Diameter Seal-O-Ring
7X-4781: 1075mm Inside Diameter Seal-O-Ring
7X-4781: 1075mm Inside Diameter Seal-O-Ring

O-ring

Brand: Cat

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Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

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Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

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Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

Need More Help? Contact Us

Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

Need More Help? Contact Us

Find a DealerEmail
Parts diagram for 7X-4781
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Description for part number 7X-4781

Description:
O-Rings are used in static sealing and some dynamic applications.

Attributes:
Cat® O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation.

Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.

With over 2500 O-Rings in different sizes and materials, Cat O-Rings are your best solution for your Cat and other mobile equipment O-Ring needs.

Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.

Applications:
O-Rings are used in many static and dynamic joints throughout Cat machines and engines.

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Warning:This product can expose you to chemicals including Silica, crystalline (airborne particles of respirable size), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Specifications for part number 7X-4781

Units of Measure

USMetric

Cross Section Diameter (mm): 5.33

Cross Section Diameter (in): 0.21

Inside Diameter (mm): 1075

Inside Diameter (in): 42.323

SAE AS568 Dash Size: 0

Material: Rubber,Silicone (70),RUBBER

Notes: Dimensions and material descriptions provided for reference only.

Polymer: VMQ (Silicone rubber)

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

Material Hardness: 70A

Compatible With: Air; Diacetone alcohol; Ethylene glycol; Extreme high/low temperatures; High aniline point oil; Iso-butyl alcohol; Ozone & UV light; Polyglycol

Temperature (°C): -46 - 150

Temperature (°F): -50 - 300

Seal/O-Ring Type: Standard

Primary Sealing Material: Rubber

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Compatible Models for part number 7X-4781

TRUCK

793B 794 AC 793F OEM

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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

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