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HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings6H-3977: 72.62mm Inner Diameter Seal O Ring
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Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings
6H-3977: 72.62mm Inner Diameter Seal O Ring
6H-3977: 72.62mm Inner Diameter Seal O Ring

O-ring

Brand: Cat

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6H-3977: 72.62mm Inner Diameter Seal O Ring
6H-3977: 72.62mm Inner Diameter Seal O Ring
6H-3977: 72.62mm Inner Diameter Seal O Ring
6H-3977: 72.62mm Inner Diameter Seal O Ring
6H-3977: 72.62mm Inner Diameter Seal O Ring

O-ring

Brand: Cat

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Frequently bought together
6H-39776H-3977
3J-19073J-1907
4J-05244J-0524
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 6H-3977
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Specifications for part number 6H-3977

Units of Measure

USMetric
Cross Section Diameter (mm): 3.53
Cross Section Diameter (in): 0.139
Inside Diameter (mm): 72.62
Inside Diameter (in): 2.859
Material: NBR (75),NBR - Nitrile,Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Polymer: NBR (Nitrile butadiene)
Material Hardness: 75A
Dash Size: 233
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Compatible Models for part number 6H-3977

GENERATOR

SR4

WHEEL TRACTOR-SCRAPER

627 623 621 627K LRC 632 623K LRC 623K 621K 627K

LOAD HAUL DUMP

R1600G R1600H R1600 R2900

OFF HIGHWAY TRUCK

796 AC 794 AC 798 AC 798

MATERIAL HANDLER

MH3037 MH3049 MH3295 MH3059

WINCH

54H 57H 56H 57 56 55 59 58 59N 59L 58L

MOTOR GRADER

120B 16 14 18 120M 120M 2 140B 140M 12M 3 12M 2 140M 3 140M 2 160M 2 160M 3 18M3 16M 160 14L 150 14M 140 14E 12M 14M3 120 12F 12E 160M 16M3 14M-3

HYDRAULIC SHOVEL

6060

TRACK SKIDDER

D5HTSK II 527 517 D4HTSK III D4HTSK II

WHEEL SKIDDER

508

TRACK-TYPE TRACTOR

D6R III D6H II D5R LGP D4H III D6R II D4H D5R2 D6N OEM D5B D5M D5N D5H D6D D6N XL D6R D6M D6N D6H D5 D6N LGP D10N D10R D7R XR D6H XL D6H XR D7R LGP D6R XL D5H XL D5R XL D7R D7F D7G D7H D8L D8N D8H D9E D9G D6R STD D9R D9L D9N D9H D4H XL D7R II

MARINE ENGINE

3304 3306 3408 3406 D353E D353C D353D D379A D379B D399 D342C D330C 3408B 3406B D349 D346 D348 D398A D398B D342 D343 3306B D333C 3304B

PIPELAYER

572R II 587T 587R 578 561N 561M 572R 561B PL83 PL87 583R 572G 583H 594H 594

EXCAVATOR

374F L 352F XE VG 352F 374F 245D 245B 390F L 349F LXE 390F 245

VIBRATORY COMPACTOR

CS-44B CS-323 CB-534C CS7 CP-323 CP7 CS44B CP-44B CP44B

MOBILE HYD POWER UNIT

390F

GENERATOR SET

3508B

WHEEL TRACTOR

650B 633E II 651B 651E 660B 631D 631E 631C 631G 641B 666B 621K OEM 627 621 623 637 641 651 657 666 623B 623G 623H 623E 623F 621B 633C 657E 657B 621R 621E 621F 633D 657G 621G 621H 621S 639D 627B 627G 627H 627E 627F 637G 637D 637E

HYDRAULIC CONTROL

193B 48 192 193 182 165 173B 163 183B 153

TRACK LOADER

983 941 951C 951B 977D 977H 941B 977K 977L 955K 955L 983B

SOIL COMPACTOR

CP44B 815 CP7 825B CS44B

BACKHOE LOADER

450E

EJECTOR TRUCK

740B D400E II 740

WHEEL DOZER

834 824B 834G 834H 834B 814 824

LANDFILL COMPACTOR

836 836H 836G 816 826B

COMPACT WHEEL LOADER

906H2 907H2 902 906H 906M 907H 907M

TELEHANDLER

TH340B

WHEEL LOADER

988B 966C 907K 980 906K 906M 988 994 992 980G II 950 980B 992B 980C 992C 980F 980G 994F 994D 994H

ELECTRIC ROPE SHOVEL

7495 HF 7495

ENGINE - MACHINE

3408

GEN SET ENGINE

3406B 3408B 3408C 3304B 3306 3304 3406 3408

ARTICULATED TRUCK

D250E II D250E D350E D350E II D400E II D300E II D400E 740C 725 740 730 735

RIPPER

D5 977 7 6 5 4 9 8

ENGINE - INDUSTRIAL

3406B

INDUSTRIAL ENGINE

3304 3306 3406 D398 D399 D379 D342 D343 D348 D349 D346 D398B 3408B D333C D353C D353E D353D D342C D330C D379B

TRUCK

794 AC 789C 777C 777B 789B 777D 769B 785 789 793D 793C 785C 785D 773B 785B 769 773 777

WHEEL SCRAPER

666B 621E 621B 657B 666 657

QUARRY TRUCK

777E

COMPACTOR

CCS7

TRACTOR

772B 784C 784B 772 776 776D 776C 776B 768B

GAS ENGINE

G333C G398 G399 G379A G342C G3304 G3306 G343 G379 G353D

BULLDOZER

977A 824S 826B 834U 834S 824C 6 825 824 8SU 834 7SU 6SU 7S LGP 8S 8U 9C 9U 9S 4S 4P 5A 5P 5S 6A 6S 7A 7S 7U 8A

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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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