345 Mb (downloads: 1)

The utility was developed to assist users in improving the performance of their Cummins engine. It is possible to access data like miles per gallon, idle time, etc.

Update date:
Cummins Inc.
Windows version:
Windows 10

PowerSpec is a program for Windows which enables you to customize the operation of Cummins engines within a unified graphical interface. It provides a vast array of features, including a gearing calculator, access to trip and fault data, parameter settings optimization instructions, and more. To reset airbags, you may try another software called Airbag Universal Repair.

First steps

The tool requires you to complete registration upon first launch. Menus on the left side will be unavailable until this procedure is complete. By entering requested information you can help the developers understand who their customers are and their location.

In order to perform any operation like read or write data to the engine, you need to establish a connection. The first step is to select desired configuration setting options in the corresponding section. After this, you can click on the Connect button.


It is possible to determine the Heavy and Light Load configuration for the Gear Down Protection feature by using the Gear Down Protection Calculator available in the Tools sections. You also have the option to evaluate the influence of ambient temperature settings on the Idle Shutdown feature. This is done through a graphical analysis facilitated by the Idle Shutdown Calculator.


  • free to download and use;
  • compatible with modern Windows versions;
  • allows you to tweak the operation of Cummins engines;
  • you can calculate and see the vehicle speed range;
  • there is an option to read logged fault codes.
345 Mb (downloads: 1)
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