371-0445: Hydraulic Cylinder Backup Ring

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Cat® Hydraulic Cylinder Backup Ring prevents extrusion and deformation of seals in hydraulic cylinders, ensuring leak-free and efficient operation

Brand: Cat

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371-0445: Hydraulic Cylinder Backup Ring

Cat® Hydraulic Cylinder Backup Ring prevents extrusion and deformation of seals in hydraulic cylinders, ensuring leak-free and efficient operation

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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Warranty Information

Return Policy

371-0445

331-2485

495-8200

View All Parts

371-0445: Hydraulic Cylinder Backup Ring

331-2485: 5.33 x 120.02mm 90A NBR O-Ring

495-8200: 130mm Bore Diameter Two Piece Seal

167-2322: 84.25mm ID Bucket Cylinder Rod Seal

233-0622: 77.66mm ID Tilt Cylinder Wiper Seal

167-2210: Type D Buffer Seal

Diagram

Description

Specifications

Compatible Models

Parts diagram for 371-0445

Specifications for part number 371-0445

Units of Measure

Metric

Material Description:

Nylon Plastic provides good resistance to fuels, oils and lubricants. Many different formulations are used, some of which can support high mechanical loads, and perform well at elevated temperatures.

Cross Section Width (in):

0.07

Notes:

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

Cross Section Width (mm):

1.9

Cross Section Height (mm):

3.9

Material:

Nylon Plastic,Polyamide Plastic

Inside Diameter (mm):

122.2

Inside Diameter (in):

4.81

Cross Section Height (in):

0.15

Compatible Models for part number 371-0445

WHEEL TRACTOR

627H 623H 621H

WHEEL TRACTOR-SCRAPER

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

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