Everything to know about your engine.

Cummins PowerSpec is an electronic tool that makes it possible to tailor the operation of Cummins engines in every on-highway engine application. PowerSpec is compatible with Windows 7, Windows 8 and Windows 10.

PowerSpec 32-bit download button
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PowerSpec 64-bit download button
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Need help with PowerSpec? Call 1-800-CUMMINS and select option 2.

Looking for specific Engine Information?

If you’re looking for particular information about an engine, like fan control or accelerators, you can now find that information under Engine Feature Descriptions.

About PowerSpec

PowerSpec's full functionality is available to support all Cummins 2013 On-Highway engine products (ISX15, ISX12, ISL9, and ISB6.7), 2010 engine products (ISX15, ISX12, ISL9, ISC8.3 and ISB6.7), 2007 products (ISX, ISM, ISL, ISC, ISB), some of the Natural Gas products (ISL G and ISX12 G) and earlier products. Features include a gearing calculator, complete descriptions of electronic features, instructions on how to optimize parameter settings, and access to trip information and fault code data. It also supports fault codes and trip information on Euro 3/4.5/5, ISBe, N14+ and M11+ CELECT Plus engines. Other functionality is not available for the Euro 3/4.5/5, ISBe and Celect Plus engines.

PowerSpec can be downloaded, at no charge, to any PC running Windows 7, Windows 8, or Windows 10. You will need the INLINE 6 adapter cable, available for order at the Cummins PowerStore or through your Cummins distributor, to communicate with and gear your vehicle, configure electronic features, and read engine data.

Please note: The use of PowerSpec is supported in North America only. For engines equipped with a Diesel Particulate Filter, Ultra Low Sulfur Diesel Fuel is required. Failure to do so can permanently damage engine and aftertreatment systems within a short period of time. This damage could cause the engine to become inoperable and affect the warranty coverage on the engine.

Click here to download the PowerSpec 6.0 user manual.

For help with PowerSpec, call 1-800-CUMMINS (1-800-286-6467).


Once you have downloaded PowerSpec, the process is simple. Just answer a few basic questions about your vehicle and desired operating mode, and the Vehicle Gearing feature will automatically recommend the optimum gearing for your application. The Engine Features and Parameters tool includes complete explanations of every engine feature and parameter, how these features work and how to get the most out of them. The Trip Information feature allows you to access information such as miles per gallon, miles driven, idle time and more. Fault Code Management allows you to read any fault codes that have been logged, making it easier to get accurate repairs. PowerSpec is compatible with Windows 7, Windows 8 and Windows 10.

PowerSpec 32-bit download button

PowerSpec 64-bit download button