1S-0668: 73.18mm Inner Diameter Backup Ring

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Backup Ring

Brand: Cat

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1S-0668: 73.18mm Inner Diameter Backup Ring

1S-0668: 73.18mm Inner Diameter Backup Ring

Backup Ring

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

1S-0668

6H-3977

3G-3281

View All Parts

Frequently bought together

1S-0668: 73.18mm Inner Diameter Backup Ring

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

3G-3281: 73.03mm Outside Diameter Rubber Gasket

2H-3928: 107.54mm Inner Diameter O-Ring Seal

2H-3931: 3.53 x 82.14mm 75A NBR O-Ring

175-7896: 3.53 x 75.79mm 75A NBR O-Ring

Diagram

Description

Specifications

Compatible Models

Parts diagram for 1S-0668

Specifications for part number 1S-0668

Units of Measure

Metric

Material Description:

NBR is a versatile material with good abrasion and cut resistance. It works well in Air, Engine Oil, Diesel Fuel, Coolant/Urea, Hydraulic Oil and Automatic Transmission Fluid applications. Do not use with Biodiesel.

Cross Section Width (in):

0.04

Notes:

Dimensions and Material Descriptions provided for reference only. Color may differ from image.

Cross Section Width (mm):

1.1

Cross Section Height (mm):

3.0

Material:

NBR - Nitrile,Nitrile / NBR / HNBR / XNBR Rubber

Inside Diameter (mm):

73.2

Inside Diameter (in):

2.88

Dash Size:

233

Cross Section Height (in):

0.12

Compatible Models for part number 1S-0668

WHEEL TRACTOR

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

HYDRAULIC CONTROL

193B 173B 172 173 183B

TRACK LOADER

983 977H 977K 977L 983B 955K 955L

LOAD HAUL DUMP

R2900

SOIL COMPACTOR

825B

WHEEL DOZER

834 824B 834B 824

LANDFILL COMPACTOR

836 826B

MOTOR GRADER

COMPACT WHEEL LOADER

906H2 906H 907H2 908M 908H2 906M 907H 907M 908H

WHEEL LOADER

962M Z 962 950M Z 907K 980 906K 906M 988 962L 950M 950L 962M 992 920 908K 988B 908M 980B 992B 980C 992C 980F 930 966C 950

WHEEL SKIDDER

528

TRACK-TYPE TRACTOR

D7F D7G D2 D1 D3 D8K D9G D3K2 XL D3K2 LGP D5K2 XL

RIPPER

8D 951 955

TRUCK

769 773 769B

WHEEL SCRAPER

666 666B 657 657B

TRACTOR

772 768B

BULLDOZER

977A 824S 8S 825 824 826B 834U 834S 834 824C

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