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What You Need to Know About Cat ET 2019A: The Latest Version of the Caterpillar Diagnostic Tool

Cat ET 2019A: A Comprehensive Guide to Download and Install the Diagnostic Software for Caterpillar Engines

If you own or work with Caterpillar engines or machines, you know how important it is to have a reliable diagnostic tool that can help you communicate, diagnose, and service them. That's why you need Cat ET 2019A, the latest version of the Caterpillar Electronic Technician software that is designed to work with electronically controlled Cat products.

In this article, we will show you what Cat ET 2019A is, what features and benefits it offers, how to download it for free, and how to use it to perform various tasks on your Cat engines and machines. By the end of this article, you will have a clear understanding of how to get and use Cat ET 2019A for your needs.

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What is Cat ET 2019A and why do you need it?

Cat ET 2019A is a diagnostic software that allows you to communicate, diagnose, and service electronically controlled Caterpillar engines and machines. It is an updated version of the previous Cat ET software that was released in 2018.

When you connect Cat ET 2019A to an Electronic Control Module (ECM) of a Cat product, you can access various functions and information that can help you troubleshoot problems, configure settings, calibrate parameters, perform tests, and obtain data for analysis.

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Some of the reasons why you need Cat ET 2019A are:

  • It can help you reduce downtime and maintenance costs by identifying and resolving issues quickly and accurately.

  • It can help you optimize performance and fuel efficiency by adjusting settings and calibrations according to your needs.

  • It can help you update software (flash files) to the latest version to ensure optimal operation and compatibility.

  • It can help you generate reports and diagnostic results that can be printed or saved for future reference.

Cat ET 2019A features and benefits

Cat ET 2019A has many features that make it a powerful and versatile diagnostic tool for Caterpillar products. Some of these features are:

  • It displays parameter status, active diagnostics, logged diagnostics, diagnostic tests, totals information, ECM configuration, etc.

  • It allows you to clear and view logged diagnostics, perform diagnostic tests, print reports and diagnostic results, perform calibrations, upload new software (flash files) to ECMs, etc.

  • It has a user-friendly interface that lets you customize views, toolbars, fonts, colors, etc.

  • It has a built-in help menu that provides guidance on how to use the software and its functions.

  • It has integration with Caterpillar SIS (Service Information System) that allows you to access technical information on how to solve faults.

Some of the benefits of using Cat ET 2019 A 2019A are:

  • It can help you save time and money by avoiding unnecessary trips to the dealer or service center.

  • It can help you improve safety and compliance by ensuring that your Cat products meet the emission standards and regulations.

  • It can help you enhance customer satisfaction and loyalty by providing quality service and support.

Cat ET 2019A compatibility and requirements

Cat ET 2019A is compatible with Windows 7, Windows 8, Windows 10, and Windows Server 2008 R2 operating systems. It requires a minimum of 2 GB of RAM, 1.5 GB of free disk space, and a screen resolution of 1024 x 768 pixels.

Cat ET 2019A also requires a communication adapter that can connect your computer to the ECM of your Cat product. The recommended adapter is the Cat Communication Adapter 3 (Cat ET 3), which is a rugged and reliable device that supports both wired and wireless communication. However, you can also use other adapters that are compatible with the RP1210 A/B/C standards, such as Nexiq USB Link, Dearborn DPA5, Noregon JPRO DLA+, etc.

Before you install Cat ET 2019A, you need to make sure that you have the following items:

  • A computer that meets the system requirements and has an internet connection.

  • A communication adapter that is compatible with Cat ET 2019A and your Cat product.

  • A software and patch files that you can download from the internet (we will show you how to do this in the next section).

  • A license.dat file that contains the activation code for Cat ET 2019A (we will show you how to get this in the next section).

  • A catet.lic file that contains the license information for Cat ET 2019A (we will show you how to get this in the next section).

How to download Cat ET 2019A for free?

If you want to download Cat ET 2019A for free, you need to follow some steps that involve downloading the software and patch files, adding a registry file, creating a folder and an environment variable, copying and pasting some files, and activating the software. These steps may sound complicated, but they are actually easy to do if you follow the instructions carefully. Here are the steps to download Cat ET 2019A for free:

Step 1: Download the software and patch files

The first step is to download the software and patch files from the internet. You can use any browser or download manager that you prefer, but we recommend using Google Chrome or Internet Download Manager (IDM) for faster and smoother downloads.

You can find the links to download the software and patch files from various sources on the internet, such as forums, blogs, YouTube videos, etc. However, some of these links may be broken, expired, or infected with viruses or malware. Therefore, we suggest using the links that we provide below, which are verified and safe to use.

The software file is called CAT_ET_2019A_v1.0.iso and it has a size of about 500 MB. The patch file is called and it has a size of about 10 MB. You can download these files from these links:

After you download these files, you need to extract them using a program like WinRAR or 7-Zip. You will get two folders: one called CAT ET 2019A v1.0 and another called CAT ET 2019A Patch. Step 2: Add the set_level.reg file into the registry

The next step is to add the set_level.reg file into the registry of your computer. This file is located in the CAT ET 2019A Patch folder that you extracted in the previous step. This file will modify some values in the registry that are related to Cat ET 2019A.

To add the set_level.reg file into the registry, you need to do the following:

  • Open the CAT ET 2019A Patch folder and find the set_level.reg file.

  • Double-click on the set_level.reg file and click on Yes when prompted by the User Account Control (UAC) window.

  • Click on Yes again when asked if you want to add the information to the registry.

  • Click on OK when you see a message saying that the keys and values have been successfully added to the registry.

After you do this, you can close the CAT ET 2019A Patch folder and proceed to the next step.

Step 3: Create a FlexLM folder on drive C:// and add the environment variable

The third step is to create a FlexLM folder on drive C:// and add an environment variable that will point to this folder. This folder will contain the license.dat file that will activate Cat ET 2019A. The environment variable will tell Cat ET 2019A where to look for this file.

To create a FlexLM folder on drive C:// and add an environment variable, you need to do the following:

  • Open File Explorer and go to drive C://.

  • Right-click on an empty space and select New > Folder.

  • Name the new folder as FlexLM (make sure it is spelled exactly like this).

  • Right-click on This PC (or My Computer) and select Properties.

  • Click on Advanced system settings on the left panel.

Click on Enviro


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