8M-4389: 2.6 X 20.3mm 70A VMQ O-Ring

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An industrial O-Ring seal prevents leaks in machinery, pipelines, and hydraulic systems, made from durable, chemical-resistant materials.

Brand: Cat

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8M-4389: 2.6 X 20.3mm 70A VMQ O-Ring

An industrial O-Ring seal prevents leaks in machinery, pipelines, and hydraulic systems, made from durable, chemical-resistant materials.

Brand: Cat

Will it fit or looking for a repair?Add your equipment to see if this part fits or if there are repair options available.

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Frequently bought together

8M-4389

2M-9780

9H-3360

View All Parts

Frequently bought together

8M-4389: 2.6 X 20.3mm 70A VMQ O-Ring

2M-9780: 2.46 x 19.18mm 90A NBR O-Ring

9H-3360: 5.33 x 557.61mm 75A NBR O-Ring

6P-5317: External Lip Type Piston Seal

4F-7389: 5.33 x 37.47mm 75A NBR O-Ring

3J-1907: 1.98 x 11.89mm 90A NBR O-Ring

Diagram

Description

Specifications

Compatible Models

Parts diagram for 8M-4389

Specifications for part number 8M-4389

Units of Measure

Metric

Compatible Models for part number 8M-4389

UNDERGROUND ART TRUCK

AD55B AD60

TRUCK ENGINE

1693 1140 1150 1145 1160

POWER MODULE

OEM POWER

INTEGRATED TOOLCARRIER

IT18B IT12 IT28 IT18 IT28B

WINCH

59N 59L 58L 53 55 59 58

MOTOR GRADER

120G 16 140G 16H 16G 130G 14H 14G 14E 12G 160G 12F 16H NA 14H NA

BACKHOE

D3 931

WHEEL SKIDDER

518

TRACK-TYPE TRACTOR

D6G2 LGP D3C II D3C III D4C III D3B D3C D4B D5C III D4C D4D D4E D5B D5C D6C D6D D7G2 D6E D6G D7F D7G D3 D5 D8L D10T2 D9T D9R D9L D9N D6G2 XL D4C II D10N D10R D10T D11N

MARINE ENGINE

D343

PIPELAYER

561D 572G 571G 589

RIPPER SCARIFIER

12G 140G 130G

WHEEL TRACTOR

650B 651B 660B 613 627 621 623 637 631D 631C 641 651 641B 657 666B 666 623B 621B 633C 657B 621R 633D 639D 627B 613B 637D

HYDRAULIC CONTROL

163 143 153 140

TRACK LOADER

931C II 935C 983 935B 939 933 931 943 941 951C 951B 941B 977K 977L 931B 931C 955K 955L 935C II

SOIL COMPACTOR

825B 815

WHEEL DOZER

834 824B 814 824

LANDFILL COMPACTOR

816 826B

COMPACT WHEEL LOADER

910

WHEEL LOADER

988F II 988 992 G926 916 920 G910 988F G916 926 930 966C 950 930R 930T 992B 926E

CHALLENGER

70C 65 75 65C 65B 65D 75C 85C

GEN SET ENGINE

3145 3160 3150

RIPPER

977 951 955 11 3 6 5 4 9 8

OFF-HIGHWAY TRUCK

D10R

INDUSTRIAL ENGINE

D343 3160

TRUCK

773G 773F 773G OEM 773B 775G 775F 775D 775G OEM 769 773 777 775G LRC 769B 769C

WHEEL SCRAPER

666B 621B 657B 666 657

QUARRY TRUCK

775B

TRACTOR

772 776 768C 768B 772B

BULLDOZER

11SU 8S 8U 9C 9U 9S 4P 5A D5C PATLGP 5S 6A 6S 11U 8A 9SU 3S 5A PAT 3P D5C PAT 4A

Related parts

270-1533: O-Ring Seal Kit (70A Silicone)

O-Ring Seal Kit: Low Pressure, High Temperaure Applications, 32 Sizes, 149 Seals, Silicone, 70 Duro

270-1533: O-Ring Seal Kit (70A Silicone)

Key

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