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.
Need More Help? Contact Us
Find a DealerEmail
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.
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 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.
Notes: Dimensions and material descriptions provided for reference only.
Polymer: NBR (Nitrile butadiene)
Material Hardness: 75A
Dash Size: 276
Seal/O-Ring Type: Standard
Primary Sealing Material: Rubber
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Compatible Models for part number 2R-0239
WHEEL TRACTOR
631D 637D 615 633D
HYDRAULIC CONTROL
163 153
TRACK LOADER
973C
SOIL COMPACTOR
815B
LOAD HAUL DUMP
R1600 R1600G R1600H
MOTOR GRADER
16
WHEEL LOADER
993K 992K 966D 966F 966E 966G 994K 994H 990K
TRACK-TYPE TRACTOR
D4H D5B D5H D6D D6H
GEN SET ENGINE
3512
ARTICULATED TRUCK
D35C D400 D25D D25C D350C D35HP D30C 730 D30D 735
MARINE ENGINE
3616 C175-16
RIPPER
977 6 5
TRUCK
793F OEM 794 AC
EXCAVATOR
330-A 330-A L
BULLDOZER
5A 5S 6A
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 2R-0239
View Detailed Parts Diagrams
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Description for part number 2R-0239
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 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.
Notes: Dimensions and material descriptions provided for reference only.
Polymer: NBR (Nitrile butadiene)
Material Hardness: 75A
Dash Size: 276
Seal/O-Ring Type: Standard
Primary Sealing Material: Rubber
View More
Compatible Models for part number 2R-0239
WHEEL TRACTOR
631D 637D 615 633D
HYDRAULIC CONTROL
163 153
TRACK LOADER
973C
SOIL COMPACTOR
815B
LOAD HAUL DUMP
R1600 R1600G R1600H
MOTOR GRADER
16
WHEEL LOADER
993K 992K 966D 966F 966E 966G 994K 994H 990K
TRACK-TYPE TRACTOR
D4H D5B D5H D6D D6H
GEN SET ENGINE
3512
ARTICULATED TRUCK
D35C D400 D25D D25C D350C D35HP D30C 730 D30D 735
MARINE ENGINE
3616 C175-16
RIPPER
977 6 5
TRUCK
793F OEM 794 AC
EXCAVATOR
330-A 330-A L
BULLDOZER
5A 5S 6A
View More
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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