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 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.
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 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.
980 XE980K HLG972G980972G II980G II980XE980H980G980L980K980M966G966G II
Articulated Truck
725C730C2D250E740C740B740 GC730CD250E IID300E745CD350E II725725C2740D400E II735C735B745730735 OEM735D300E II
Ripper
7811
Truck
785789789C789D789B785G785C785D
Spray Ar
CAT WDS
Bulldozer
7SU11U7A7S7U11SU7S LGP8A8U8SU
View More
Underground Art Truck
AD22
Warranty Information
Return Policy
Parts diagram for 8J-1665
View Detailed Parts Diagrams
Add Your Equipment
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 8J-1665
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 8J-1665
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.
D7R D7H D8 D7 D8T D8R D10T2 D8N D10 D11 D7R LGP D8 GC D8R II D7R SERIES D8GC D11N D11R D11T D7R II D6R D7R XR
MARINE ENGINE
C140
UNDERGROUND ARTICULATED TRUCK
AD22
PIPELAYER
583T 583R 572R II PL83 PL87 587T 587R 578 572R
FRONT SHOVEL
5080 385C 5090B 235C
WATER FORDING TRACTOR
D7R II
EXCAVATOR
MH3295 235 374F L 390F 374F 3101 385C FS 235B 235C 235D 395 245 365B II 245D 245B 390F L 374 365C 365B
MOBILE HYD POWER UNIT
390F
GENERATOR SET
3508B
MARINE TRANSMISSION
C8.7
EJECTOR TRUCK
740 730C2 EJ 730 D400E II 730C 740B
COLD PLANER
PM-465 PM-201 PM-565B
WHEEL DOZER
844 854 854G 854K 844H
WHEEL LOADER
980 XE 980K HLG 972G 980 972G II 980G II 980XE 980H 980G 980L 980K 980M 966G 966G II
ARTICULATED TRUCK
725C 730C2 D250E 740C 740B 740 GC 730C D250E II D300E 745C D350E II 725 725C2 740 D400E II 735C 735B 745 730 735 OEM 735 D300E II
RIPPER
7 8 11
TRUCK
785 789 789C 789D 789B 785G 785C 785D
SPRAY AR
CAT WDS
BULLDOZER
7SU 11U 7A 7S 7U 11SU 7S LGP 8A 8U 8SU
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
Chat with an expert
Will It Fit?Add your equipment to see if this part fits or if there are repair options available.
Add Equipment
Will it fit or looking for a repair?Add your equipment to see if this part fits or if there are repair options available.