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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Description
Description
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.
Warning:This product can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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.
Warning:This product can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Compatible With: Excellent resistance to oxidation; Excellent resistance to ozone; Excellent resistance to sunlight & UV light; Petroleum base fluids; Transmission fluids; Type R power steering fluid
Dash Size: 262
Units of MeasureUSMetric
Cross Section Diameter (mm): 3.53
Cross Section Diameter (in): 0.139
Inside Diameter (mm): 177.39
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Compatible Models
Compatible Models
Underground Art Truck
AD55AD63AE40AD30AD45BAE40 IIAD45AD40
Wheel Tractor
627
Power Module
TR43-C18LTR43TR43-E44
Load Haul Dump
R3000HR2900GR2900 XER2900
Soil Compactor
825825G II825H825G825K825C
Wheel Dozer
834834G834H834B834K824G II824824H824G824C824K
Oem Solutions
3412C
Landfill Compactor
836H836G836K826C826G826H826K836826826G II
Motor Grader
24H24M
Wheel Loader
980K HLG980G II988K XE988B988G988H988F988K980C980F980H980G988 XE980L980K980M988F II986980982988GC986H988986K982M980F II
Articulated Truck
D550BD44B
Marine Engine
3408B3406B34083406D342CD342D343
Industrial Engine
C9.3B
Powertrain
TR43M44-C13BTR43E44-C13BL
Engine - Generator Set
3508B
Bulldozer
824S825834U834S
View More
Underground Art Truck
AD55AD63AE40AD30AD45BAE40 IIAD45AD40
Warranty Information
Return Policy
Parts diagram for 7L-2181
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 7L-2181
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 7L-2181
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.
View More
Warning:This product can expose you to chemicals including Carbon black (airborne, unbound particles of respirable size), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Compatible With: Excellent resistance to oxidation; Excellent resistance to ozone; Excellent resistance to sunlight & UV light; Petroleum base fluids; Transmission fluids; Type R power steering fluid