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HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings302-7778: Industrial O-Ring Seal
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Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings302-7778: Industrial O-Ring Seal
302-7778: Industrial O-Ring Seal
An industrial O-Ring seal prevents leaks in machinery, pipelines, and hydraulic systems, made from durable, chemical-resistant materials.
Brand: Cat
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302-7778: Industrial O-Ring Seal
An industrial O-Ring seal prevents leaks in machinery, pipelines, and hydraulic systems, made from durable, chemical-resistant materials.
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.
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
Description
Description
O-Rings are used in static sealing and some dynamic applications.
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.
O-Rings are used in static sealing and some dynamic applications.
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.
Color Notes: Actual O-ring color may differ from image.
Cross Section Diameter (in): Not specified
Cross Section Diameter (mm): Not specified
Hardness (Shore A): Not specified
Material: Rubber
Material Description: Not specified
Notes: Dimensions and material descriptions provided for reference only.
Outside Diameter (in): Not specified
Outside Diameter (mm): Not specified
SAE AS568 Dash Size: Not specified
Seal Type: O-Ring
Units of MeasureUSMetric
Coating: Not specified
Color: Not specified
Color Notes: Actual O-ring color may differ from image.
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Compatible Models
Compatible Models
Gen Set Engine
POWER SYS
Generator
LC20XX
Generator Set
C4.4DE110EDE55GCC2.2DE18E3C4.4C2.2C2.2 GEN SC1.1DE9.5C4.4DE55E2C3.3 GEN SD20DE50GCXQ35DE33GCC1.1D25C4.4DE88E0C4.4DE65E3C4.4DE88E3C1.5C3.3C3.3DE33E3C3.3DE50E0C3.3DE50E2D30XQP20C3.3DE33E0DE65GCXQ20T4FXQP30C4.4DE110E2
Power Module
XQ35
Engine - Industrial
XQ20
Engine
C2.2C1.1C1.7
Industrial Engine
3011CC2.2C0.53054CC1.7C1.5C3.3C1.6C1.13024C
Engine - Generator Set
C3.3DE50E0C1.5DE13.5
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Gen Set Engine
POWER SYS
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.
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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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 302-7778
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Description for part number 302-7778
O-Rings are used in static sealing and some dynamic applications.
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.
