4J-9221: 124.28mm Internal Diameter Rubber Backup Ring

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Cat® Rubber Backup Ring of 3mm Thickness Used for Cylinder in Hydraulic System

Brand: Cat

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4J-9221: 124.28mm Internal Diameter Rubber Backup Ring

4J-9221: 124.28mm Internal Diameter Rubber Backup Ring

Cat® Rubber Backup Ring of 3mm Thickness Used for Cylinder in Hydraulic System

Brand: Cat

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4J-9221

5F-3999

9X-7264

View All Parts

4J-9221: 124.28mm Internal Diameter Rubber Backup Ring

5F-3999: 123.42mm Inner Diameter O-Ring Seal

9X-7264: 127mm Bore Diameter 2-Piece Seal

4J-4630: 127mm Outer Diameter Plastic Ring

225-3281: 61.42mm Inner Diameter Double Lip Wiper Seal

289-2937: Seal Assembly-Buffer

Diagram

Description

Specifications

Compatible Models

Parts diagram for 4J-9221

Specifications for part number 4J-9221

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 Height (mm):

3.0

Cross Section Width (mm):

1.1

Material:

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

Inside Diameter (mm):

124.3

Inside Diameter (in):

4.89

Dash Size:

249

Cross Section Height (in):

0.12

Compatible Models for part number 4J-9221

TRACK-TYPE TRACTOR

D9G

WHEEL TRACTOR

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

HYDRAULIC CONTROL

193B 183B

TRUCK

769 773 769B

TRACK LOADER

977H 977K 977L 983

SOIL COMPACTOR

825B

TRACTOR

772 768B

BACKHOE LOADER

426B 426C 436C 436B

BULLDOZER

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

WHEEL DOZER

834 824B 824

LANDFILL COMPACTOR

836H 836G 836K 826B 836

WHEEL LOADER

938G II 928G 980B 992B 980 938G 938F 928HZ 966C 988 992

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