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BackHomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings4F-7391: 32.92mm Inner Diameter Seal O Ring
BackHome
Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings
4F-7391: 32.92mm Inner Diameter Seal O Ring
4F-7391: 32.92mm Inner Diameter Seal O Ring
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4F-7391: 32.92mm Inner Diameter Seal O Ring
4F-7391: 32.92mm Inner Diameter Seal O Ring
4F-7391: 32.92mm Inner Diameter Seal O Ring
4F-7391: 32.92mm Inner Diameter Seal O Ring
4F-7391: 32.92mm Inner 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.

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.

Need More Help? Contact Us

Find a DealerEmail
Parts diagram for 4F-7391
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Description for part number 4F-7391

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.
Specifications for part number 4F-7391

Units of Measure

USMetric

Cross Section Diameter (mm): 3.53

Cross Section Diameter (in): 0.139

Inside Diameter (mm): 32.92

Inside Diameter (in): 1.296

SAE AS568 Dash Size: -219

Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber

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: 219

Seal/O-Ring Type: Standard

Primary Sealing Material: Rubber

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Compatible Models for part number 4F-7391

TRUCK ENGINE

C7 1693 3126B 3306 1673C 3116

INTEGRATED TOOLCARRIER

IT12B IT28G IT28F

CRUSHER

CR28 CR20

WHEEL SKIDDER

518 528 535C

PULVERIZER

P40 P25 P28 P16

EXCAVATOR

320-A L 320-A N 225B 229 225 235 320-A 215 320N 235C 245 245B M312 M315 M318 320 L

WHEEL TRACTOR

650B 651B 651E 660B 627 621 631C 641 651 641B 657 666B 666 623E 657E 633C 657B

HYDRAULIC CONTROL

50 44 192 193 191 183 181 182 165 173B 163 161 143 183B 153 151 141 140

VEHICULAR ENGINE

D348 D349

TRACK LOADER

973 983 943 941 953 951C 951B 977D 977H 941B 953C 977K 955C 931B 955H

SOIL COMPACTOR

825B 815

BACKHOE LOADER

416 426 428 446B 438 436

WHEEL DOZER

834 824B 814 824

LANDFILL COMPACTOR

816 826B

COMPACT WHEEL LOADER

910F 910E

WHEEL LOADER

928G 960F 980 950B 950E 950G 962G 950F 988 962M 992 920 930 966C 950 930R 930T 950B/950E 980B 992B 928F 938G 938F 950F II

TELEHANDLER

RT80 RT100

SOIL STABILIZER

SS-250

INDUSTRIAL TRACTOR

HA771

ARTICULATED TRUCK

D30C D30D D35C D300B D400E D250B D25D D25C D350E D350C 725 D300E II

INDUSTRIAL ENGINE

D342 D343 3126 D348 D349 D346 D398B 3304 3306 D333C D398 D399 D353C D353E D353D D342C D330C D379 D379B

WHEEL SCRAPER

627 666B 613C 666 637 657

GAS ENGINE

G3508J

BULLDOZER

7SU 977A 7S LGP 8S 10C 5A 5S 6A 6S 10S 7S 10U 3S 4A

FELLER BUNCHER

FB518

UNDERGROUND ART TRUCK

AD30

LOAD HAUL DUMP

R1600G R1600

MOTOR GRADER

120H 120B 16 140B 140G 140 14G 14E 12G 120 12F 12E

WINCH

528 57H 55

BACKHOE

D3 931

TRACK-TYPE TRACTOR

D10 D3B D4H D4D D4E D5B D5H D6C D6D D6E D6H D7F D7G D7H D6 D5 D8K D8H D9G D4E SR

ASPHALT PAVER

AP-655C BG-2455D AP-800 AP-800B AP-1055D BG-225C

MARINE ENGINE

D353E D353C D353D D379A D379B D399 D342C D330C D364 D349 D346 D348 D398A D398B 3126 D342 D343 D333C 3304 3306 3406

PIPELAYER

561B 561D 561C 572F 583H 571F

SHEAR-DEMOLITION/SCRAP

S25 S30

FRONT SHOVEL

235C

VIBRATORY COMPACTOR

CS-563 CP-563 CB-434

RIPPER SCARIFIER

16G

COLD PLANER

PR-1000 PR-1000C PM-465 PM-565

ROAD RECLAIMER

RR-250

GEN SET ENGINE

3116

ENGINE - MACHINE

3116

CHALLENGER

55 35 45

RIPPER

8D 8B 10 7 9 8 9B

MARINE GEAR

3192 7251

TRUCK

769 773 777 769B

CABLE CONTROL

129

WHEEL FELLER BUNCHER

533

TRACK-TYPE LOADER

977K

View More
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 4F-7391
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 4F-7391

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.
Specifications for part number 4F-7391

Units of Measure

USMetric

Cross Section Diameter (mm): 3.53

Cross Section Diameter (in): 0.139

Inside Diameter (mm): 32.92

Inside Diameter (in): 1.296

SAE AS568 Dash Size: -219

Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber

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: 219

Seal/O-Ring Type: Standard

Primary Sealing Material: Rubber

View More
Compatible Models for part number 4F-7391

TRUCK ENGINE

C7 1693 3126B 3306 1673C 3116

INTEGRATED TOOLCARRIER

IT12B IT28G IT28F

CRUSHER

CR28 CR20

WHEEL SKIDDER

518 528 535C

PULVERIZER

P40 P25 P28 P16

EXCAVATOR

320-A L 320-A N 225B 229 225 235 320-A 215 320N 235C 245 245B M312 M315 M318 320 L

WHEEL TRACTOR

650B 651B 651E 660B 627 621 631C 641 651 641B 657 666B 666 623E 657E 633C 657B

HYDRAULIC CONTROL

50 44 192 193 191 183 181 182 165 173B 163 161 143 183B 153 151 141 140

VEHICULAR ENGINE

D348 D349

TRACK LOADER

973 983 943 941 953 951C 951B 977D 977H 941B 953C 977K 955C 931B 955H

SOIL COMPACTOR

825B 815

BACKHOE LOADER

416 426 428 446B 438 436

WHEEL DOZER

834 824B 814 824

LANDFILL COMPACTOR

816 826B

COMPACT WHEEL LOADER

910F 910E

WHEEL LOADER

928G 960F 980 950B 950E 950G 962G 950F 988 962M 992 920 930 966C 950 930R 930T 950B/950E 980B 992B 928F 938G 938F 950F II

TELEHANDLER

RT80 RT100

SOIL STABILIZER

SS-250

INDUSTRIAL TRACTOR

HA771

ARTICULATED TRUCK

D30C D30D D35C D300B D400E D250B D25D D25C D350E D350C 725 D300E II

INDUSTRIAL ENGINE

D342 D343 3126 D348 D349 D346 D398B 3304 3306 D333C D398 D399 D353C D353E D353D D342C D330C D379 D379B

WHEEL SCRAPER

627 666B 613C 666 637 657

GAS ENGINE

G3508J

BULLDOZER

7SU 977A 7S LGP 8S 10C 5A 5S 6A 6S 10S 7S 10U 3S 4A

FELLER BUNCHER

FB518

UNDERGROUND ART TRUCK

AD30

LOAD HAUL DUMP

R1600G R1600

MOTOR GRADER

120H 120B 16 140B 140G 140 14G 14E 12G 120 12F 12E

WINCH

528 57H 55

BACKHOE

D3 931

TRACK-TYPE TRACTOR

D10 D3B D4H D4D D4E D5B D5H D6C D6D D6E D6H D7F D7G D7H D6 D5 D8K D8H D9G D4E SR

ASPHALT PAVER

AP-655C BG-2455D AP-800 AP-800B AP-1055D BG-225C

MARINE ENGINE

D353E D353C D353D D379A D379B D399 D342C D330C D364 D349 D346 D348 D398A D398B 3126 D342 D343 D333C 3304 3306 3406

PIPELAYER

561B 561D 561C 572F 583H 571F

SHEAR-DEMOLITION/SCRAP

S25 S30

FRONT SHOVEL

235C

VIBRATORY COMPACTOR

CS-563 CP-563 CB-434

RIPPER SCARIFIER

16G

COLD PLANER

PR-1000 PR-1000C PM-465 PM-565

ROAD RECLAIMER

RR-250

GEN SET ENGINE

3116

ENGINE - MACHINE

3116

CHALLENGER

55 35 45

RIPPER

8D 8B 10 7 9 8 9B

MARINE GEAR

3192 7251

TRUCK

769 773 777 769B

CABLE CONTROL

129

WHEEL FELLER BUNCHER

533

TRACK-TYPE LOADER

977K

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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