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ET-3 ETIII ET4 Communication Adapter Diagnostic Tool For Heavy Equipment Test

Note: ET4 is an updated version of ET3

Communications Adapter III 317-7485 is the latest generation of the Communication Adapter group for CAT, and replaces the Comm Adapter II.This function is needed for some ET (Electronic Technician) functions.

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Real 2019C ET-3 Adapter III Professional Diagnostic Adapter

Software version: 2019A(ET3)/2019C(ET4)
Support Operating System: Windows XP, Win7, 

Win 10(must be contact us before payment, it needs remote installation assistance)

This is the only recommended communication device for CAT, and the only datalink device that will allow you to properly communicate with a CAT engine on dual datalinks.

● Automatically selects J1939/11 when flashing the engine (reduces the flash time approximately 80%, from 14 minutes to 3 minutes).

● Allows communication between service tools and engine controls using various data links such as J1939/11, DeviceNet (future release), CAT DataLink, and J1708 (ATA) vehicle networks

● Flash program allows adapter firmware upgrades as additional features become available

● Uses J1939/11, high-speed data link (part of ADEM III controls), substantially reducing flash timePackage Including:

as picture



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Duty For International Buyer

Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's reponsibility.


Shipping Policy

Expedited Shipping(Fedex/DHL/TNT/USP): To USA 3-6 Workdays, To other countries 3-8 Workdays.

Standard Shipping(Speedpak/Post/4PX): To USA 7-12 Workdays, To United Kingdom & Australia 20-35 Workdays, To other countries 20-50 Workdays.

Please make sure to provide us with correct, precise and detailed shipping address and correct phone number. Order will be shipped out with 1 to 10 business days upon payment received or cleared.


Return Policy

Customer satisfaction is our top goal.

If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately.

Returns accepted within 30 workdays of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.

Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in cordial and friendly manner.


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We will reply every message and solve the problem within 24 hours(except holiday). If you have any problems or concerns whatever with your order or products, please mail us and give us a chance to assist you before leaving any feedback. We maintain high standards of excellence Postive feedback and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concern.


On Feb 10, 2023 at 22:53:29 PST, seller added the following information:

DataCaciques