Best Quality CAT Caterpillar ET 2026A 2019C Diagnostic Adapter III Cat Communication Adapter 3 (Real Caterpillar ET3 Adapter 3)

Best Quality CAT Caterpillar ET 2026A  2019C Diagnostic Adapter III Cat Communication Adapter 3 (Real Caterpillar ET3 Adapter 3)

Top 5 Reasons To Get CAT Caterpillar ET Diagnostic Tool Adapter 3
1. Latest Version:2026A 2019C（option), pls note: 2026A software version include the 10 factory password generator. when you push the ctrl+f2 shortcut button,you can open the 10 bits of password generator.            
2. Supported Operating System: Windows 8/8.1 32 bit, Windows 8/8.1 64 bit, Windows 10 32 bit, Windows 10 64 bit, Windows 11 64 bit, Windows 11 Pro 64 bit
3. We will activate it after installing 2026A 2019C version software.(After the installation , please contact us help you active the software by remote）
4. Supported Language: Chinese(Simplified),Danish, German(Germany), French(France), Portuguese (Portugal), Japanese, Spanish (tradition), Italian(Italy), English(America)
5. Support caterpillar diagnostic till 2026

Caterpillar electronic technician 2026A (replaces CAT ET 2021C, 2021B, 2021A, 2020A, 2019C, 2019B) with WinFlash future is an updated version of the caterpillar dealer diagnostic software that can help technicians to diagnose existing and potential problems with their electronically controlled Caterpillar Engines and Machines.

2026A Caterpillar Electronic Technician softwarer With CAT ET 3 Cat caterpillar adapter 3 support caterpillar diagnostic till 2026

Caterpillar ET 2026A(replaces CAT ET 2019C, 2021B) Electronic Technician Diagnostic Software ：
Brand:Caterpillar
Region:    WorldWide
Support Multi-languages：English, Chinese, Danish, French, German, Italian, Japanese, Portuguese, Russian, Spanish
Compatible OS: Windows 7 32 bit, Windows 7 64 bit, Windows 8/8.1 32 bit, Windows 8/8.1 64 bit, Windows 10 32 bit, Windows 10 64 bit
Support All cars of CAT

With the CAT Diagnostic Tool, you can:
View active and logged diagnostics
View events where irregularities occurred and were logged by the ECM
View the status of a group of parameters (temperatures, pressures, etc.) simultaneously
Record and log performance data
Graph a group of status parameters
View the current configuration of an ECM
Change ECM configurations
Perform diagnostic tests
Perform calibrations
Print reports and diagnostic results
For some machine and engine products, additional functionality has been included with the service tool program

Product Description
CAT Caterpillar ET Diagnostic Tool from Caterpillar provide the capability to access Electronic Control Modules (ECMs) from a personal computer. Many job-critical tasks can be performed with an electronic service tool. The user can display the status of a group of parameters (temperatures, pressures, etc.) simultaneously, view active and clear logged diagnostics, display the current configuration of an ECM and much more. The service tool works with a communication adapter to allow connection to an ECM. A graphical interface makes this software quick to learn and easy to use. A separate pull-down menu for each function enhances the "ease of use." The version and identification of the ECM is automatically retrieved and is displayed on a summary screen when the program is started. Diagnostic tests and calibrations can also be performed.

CAT Caterpillar ET Diagnostic Tool enable service technicians to reprogram ECMs, reconfigure control system parameters, fine tune performance or diagnose the root cause of a failure the first time. These powerful tools allow service personnel to display and analyze vital performance and health information from any system quickly and accurately. The service tool communicates with any system using ATA (J1708), J1939 or the Caterpillar proprietary data link networks. The service tools provide information and features needed to help a technician diagnose problems and perform repairs and to customize and personalize the operation of a product. By allowing customers to design flexibility and configurability into a product, Caterpillar service tools stretch beyond the capabilities of preprogrammed ECMs or onboard display systems.

PC, Communication Hardware, and Cable Requirements
To run the service tool, the next PC, communication hardware, and cable requirements must be met.
NOTE: The minimum PC Configurations should not be used as a standard when buying new personal computers for service tool purposes. If the existing equipment meets these minimum requirements, it will run the service tool.

PC Requirements
Recommended Configurations
PC containing a 2.0 GHz dual-core processor
3GB RAM
3GB of the available hard disk drive
DVD-ROM drive (optionally)
15.4-inch XGA Screen (1280x1024 compatible)
Microsoft Windows™ 7 Professional or Windows 8 Professional, Windows 10 Professional (Not tested with Home Edition) (Note: Windows 8 RT is not supported)
RS232 port with 16550AF UART or compatible (for use with Comm Adapter II)
USB 1.1 or 2.0 port (for use with Comm Adapter 3)
Ethernet RJ45 connector
Built-in pointing device or mouse
For security purposes, Microsoft Internet Explorer version 11 or newer or Microsoft Edge is recommended.
Note: The most recent version of Microsoft Internet Explorer may not be validated to work with the service tool.

The list of supported CAT machines and engines can be found below:
Engines:
Electric Power
Electric Power Generation
Industrial
Marine Power Systems
Oil and Gas

Machines:
Articulated Trucks
Asphalt Pavers
Backhoe Loaders
Cold Planers
Compactors
Dozers
Drills
Excavators
Feller Bunchers
Forest Machines
Forwarders
Harvesters
Hydraulic Mining Shovels
Knuckleboom Loaders
Material Handlers
Motor Graders
Off-Highway Trucks
Pipelayers
Road Reclaimers
Site Prep Tractors
Skid Steer and Compact Track Loaders
Skidders
Telehandlers
Track Loaders
Underground - Hard Rock
Underground - Longwall
Underground - Room and Pillar
Utility Vehicles
Wheel Dozers
Wheel Excavators
Wheel Loaders
Wheel Tractor-Scrapers

Caterpillar SIS 2023 CAT SIS 2023 Service Information System (Optional)

Type of catalogue:repair manual, spare parts catalog
Make:caterpillar
Region:WorldWide Inclusive
Languages:English, Spanish, Italian, Chinese, Mexican, German, French
Amount of disks: 300 GB

Description：
Caterpillar SIS (CAT SIS) 2023 is illustrated as a guide to the maintenance and repair of the full range of cat vehicles, contains guidance on repair equipment and machinery caterpillar, program help diagnose production caterpillar, operating instructions spare parts and equipment caterpillar.
Repair manual caterpillar SIS 2023 is intended for engineers and will be useful to all interested in the given direction.
E-program caterpillar SIS 2023 allows the owner of specialized equipment to quickly and easily find the required information about the machine because it contains a search function references; helps professionals to calibrate equipment caterpillar, diagnose it and troubleshoot equipment to solve any problems.

We're getting a lot of questions about how to work with the CAT SIS
It's simple and convenient for use. All you need to know is your model name, or serial number, or prefix. Also, you can use the Parts search function.  

Caterpillar Service Information System is a completely offline product, no matter it works using Internet Explorer Browser (You connected to the local web server, which is being installed on your own PC/Laptop). The technical database for all cat machinery stored on 26 DVD-DL discs or (iso images or these DVDs). 

2023 CAT SIS EPC Functions:
Parts catalogs
Maintenance and repair manuals
Guidance on repair equipment
Wiring and hydraulic diagrams
program help diagnose production caterpillar
operating instructions spare parts and equipment caterpillar
Calibration data, etc

2023 CAT SIS EPC Information Types/Titles
>Contamination Control Guidelines
>Disassembly and Assembly
>General Service Information
>Operation and Maintenance ManualParts Identification
Schematic
>Service Letter
>Special Instruction
>Specifications
>Systems Operation
>Testing and Adjusting
>Tool Operating Manual
>Torque Specifications
>Troubleshooting
>Truck Engine News

Sections
IMDEX
MAINTENANCE PARTS LIST
MACHINE ARRANGEMENT
ENGINE_ARRANGEMENT
BASIC ENGINE
LUBRICATION SYSTEM
COOLING SYSTEM
AIR_INLET AND EXHAUST SYSTEM
FUEL SYSTEM
ELECTRICAL AND STARTING SYSTEM
POWER TRAIN
FRAME_AND BODY
BRAKING SYSTEM
STEERING SYSTEM
HYDRAULIC SYSTEM
OPERATOR_STATION
SFRUICE EQUIPMENT AND SUPPLIES
Option 1:
Package
1.Real CAT et3 Comm Adapter III (it's real cat et 3,not adapter 2,please check Communication port)
2.USB Cable(From device to your computer)
3.J1939/J1708 9PIN Cable
4.Cat ET 2019 software DVD
5.14PIN Cable(for new truck)
6.6PIN Cable(for old truck)
7.Plastic box

Option 2 :
Package
1.Real CAT et3 Comm Adapter III (it's real cat et 3,not adapter 2,please check Communication port)
2.USB Cable(From device to your computer)
3.J1939/J1708 9PIN Cable
4.CAT ET 2026A software (Free installation remotely on one laptop）
5.14PIN Cable(for new truck)
6.6PIN Cable(for old truck)
7.Plastic box

Option 3 :
Package
1.Real CAT et3 Comm Adapter III (it's real cat et 3,not adapter 2,please check Communication port)
2.USB Cable(From device to your computer)
3.J1939/J1708 9PIN Cable
4.ET software DVD
5.14PIN Cable(for new truck)
6.6PIN Cable(for old truck)
7.Plastic box
8.1pc x Second-hand Lenovo X230 Laptop With 2026A Cat Software (The  CAT ET software and 2023 CAT SIS Software has been installed and activated）

Second Hand Lenovo X230 Laptop:
Brand:Lenovo
Condition:Used
Type:Laptop/Notebook
Screen Size:12.5
Processor Type:Intel (R) Core(TM) I5-3320M CPU
Memory:8GB
Processor Speed:2.6GHz

Option 4 :
Package
1.Real CAT et3 Comm Adapter III (it's real cat et 3,not adapter 2,please check Communication port)
2.USB Cable(From device to your computer)
3.J1939/J1708 9PIN Cable
4.ET software DVD
5.14PIN Cable(for new truck)
6.6PIN Cable(for old truck)
7.Plastic box
8.1pc x Second-hand Lenovo T450 Laptop With 2026A Cat Software(The cat et software and 2023 CAT SIS Software has been installed and activated)

Second Hand Laptop Lenovo T450 Laptop:
Brand: Lenovo
Condition: Used
Type: Laptop/Notebook
Screen Size: 14
Processor Type: Intel (R) Core(TM) I5-5200U CPU
Memory: 8GB

Option 5 :
Package
1.Real CAT et3 Comm Adapter III (it's real cat et 3,not adapter 2,please check Communication port)
2.USB Cable(From device to your computer)
3.J1939/J1708 9PIN Cable
4.ET software DVD
5.14PIN Cable(for new truck)
6.6PIN Cable(for old truck)
7.Plastic box
8.1pc x Second-hand Panasonic FZ-G1 Tablet With 2026A Cat Software (The cat et software has been installed and activated）

Second Hand Laptop Panasonic FZ-G1 Configuration:
10.1" HD Screen
Intel Core i5-6300U Processor
8GB Memory
Windows 10 Pro (Refurbished)
Wifi
Display Resolution Maximum 1920 x 1200

Original Factory Caterpillar ET3 Adapter III Compare With OEM Caterpillar ET Diagnostic Adpater III

1. Original Factory CAT ET can use once pluged, no need install the USB drive, the software can automatic realize it for ET3 Adapter, and the machine can automatic weld the high quality Circuit board, quality will be more reliable.
2. The OEM Caterpillar ET Diagnostic Adapter III need use USB Drive to install, and need choose the COM Port, and  in the software ET also need choose ET2 then can be used.

The Details as follows:

What's New - Updates by Version
Automatic Connection Preferences
Users are now able to change multiple automatic connection preferences for the service tool and WinFlash. After navigating to the Preferences dialog, users may enable the service tool to connect automatically when opened in service and/or flash mode. Both options may also be disabled if the user wishes to connect manually.

What’s New – 2026
Automatic Product Status Report (PSR) Upload
The service tool includes a new tool that automatically uploads Product Status Reports.   The tool scans for newly generated Product Status Reports and uploads them when an internet connection is available.   The default is that automatic report uploading is enabled.   The Preferences dialog has an option to disable the tool.

What’s New – 2026
ECM Naming Changes
Certain ECMs connect to the service tool over two data links at the same time.   The service tool shows a message popup when the ECM is only detected on one link.   The service tool has been changed to add the text **INCOMPLETE** in the ECM name when the connection is incomplete.   Service tool features that display a connection icon also use a new icon for an incomplete connection.

What’s New – 2026
No significant new features or feature enhancements

What’s New – 2026
CEOS Fleet Configuration File TOP
A CEOS (Customer Electronic Option Selection) Fleet Configuration File can be created/modified for an engine using the Service Tool.   This is available in connected and disconnected mode.

Error When Launching Service Tool
There is a Microsoft issue with upgrading libraries during an installation involving certain versions of the C++ redistributable.   After a successful service tool installation, when trying to run the service tool for the first time, one of the following errors may occasionally appear: “The entry point could not be located in api-ms-win-crt-runtime” or “The program can’t start because mfc140u.dll is missing from your computer.”   If either of these messages is displayed, please let us know and we will send you to step by step troubleshooting guide.   This procedure requires administrator rights.

Service Tool License Corruption Issues with Windows 10 Updates
Windows 10 updates 1709 and 1803 will corrupt service tool licenses.   Future Window 10 updates may do the same

If either of license error messages is displayed, please let us know and we will send you to step by step troubleshooting guide.

What’s New – 2026
Trainer Update – 988K XE Wheel Loader
The 988K XE Wheel Loader has been added to the Trainer application.

What’s New – 2026
Preferences Option to Save a Product Status Report to PDF

The Preferences dialog for the Product Status Report has changed. The dialog contains a new checkbox to automatically save a Product Status Report as a PDF file when the report is created. The service tool will continue to automatically save Product Status Reports as an XML file.

What’s New – 2026
Product Status Report Updates
The Product Status Report has been updated to include certain history features supported by the ECM, such as the after-treatment Regeneration History and the Service Test History.

Winflash Screen Update
The screen for the Winflash feature has been updated.    A new Expand All button opens all sections of the screen to show all details for ECMs detected by WinFlash.    A new Collapse All button hides all sections of the screen, except for header rows showing detected ECM names.