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FREE Ebook!  Cummins QuickServe Online Short Guide. Download it by clicking here.

Cummins Quickserve Online Account for FREE!


You can now get the same functionality as a paid version with a very small restriction.

Are you ready to improve the way you do diagnostics on your Cummins Diesel engine?

How much does QuickServe Online cost?

The cost ramps up quickly, depending on how many days or months you need access for, or how many accounts you need to create:


Access for 1 week, costs $50

1-month subscription costs $200

Annual subscription costs $1200


If you do not intend to use your account a lot, keep reading to see how to avoid the costs!

A lot of people are not aware that Cummins offers the ability for anyone to create a QSOL (QSOL = QuickServe Online) account for FREE!


How can a QSOL account improve your life as a Diesel engine enthusiast or small Diesel repair workshop?


From my experience over the years working for Cummins…

it can make a significant difference on how you do diagnostics from now on!


What is the benefit of having a QSOL Account?

Free QSOL Accounts provide the same UNRESTRICTED access to repair information, engine wiring diagrams and troubleshooting guides for your Cummins engine.


That’s right! There will be no restriction on what you read comparing to a full, paid Account version.


You will be able to access the official Cummins Repair Manual and Cummins Fault-Code Troubleshooting guide for any of the following engines:



Cummins QSB6.7 cover

What does that mean for me?

Are you the owner or an employee at a small workshop?

Have you been trying to find Cummins wiring diagrams without success?

Better customer satisfaction!

Fix it right the first time! You can gain more customers by following the correct troubleshooting steps and avoid repeat repairs.

Are you a Diesel engine enthusiast?

Can’t get rid of that persistent fault code?

Well, sleeves up and let’s fix that engine! 

If you already have the basic hand tools, then you are half-way there! 

No fault code reader? Diesel Laptops have a great selection to suit your needs!

OK, I am almost convinced. What's the downside of a FREE Cummins QSOL Account?

What will I be able to access with my FREE QSOL Account?

OK, have I got your attention now? Off to the main point!

How can I create my FREE QSOL Account?

This guide will work best if you keep this tab open and create your account on a new tab or window so you can follow along.

Step 1:

In a new tab or window, navigate to or click my link to go to Cummins Quickserve Online directly.

Step 2:

On the left-hand-side menu, click on “Create an Account”

Step 3:

On the next page, add the “Free subscription” item to the cart.

Step 4:

Then click on “My Cart”

…and then on “Proceed to Checkout”

Step 5:

Click on “Checkout”

Step 6:

Fill out the form with your details, then tick the box to agree with the T&Cs and click “Next”

Step 7:

On the next page you can check the details if you like. Then click on “Next”

Step 8:

On the next page you might be asked to confirm you are not a robot. If you are not a robot, then you can click on “Complete Transaction”

Step 9:

At this stage you should receive an Email from Cummins to create a password for your new account!

Step 10:

Set answers to 3 secret questions for safety, in case you need to reset your password in the future:

Step 11:

On the next page you need to set your password:

Step 12:

Now navigate to QuickServe Online to log in!

Step 13:

After log in, provide an Engine Serial Number (ESN) and you’ll be able to access all the workshop and wiring diagrams for that model!

…and you are done!

Just ensure you add to your bookmarks for easy access!

Ready for more? Check my Premium Cummins QuickServe Online training course!

I also created a downloadable QSOL Short Guide. Please click here.

My diagnostic tool suggestions

Choosing a diagnostic tool shouldn’t be taken lightly. It is an investment for the future!

The priorities I personally set are:

  1. Technical Support. What if I face technical problems? Will the developer support me?
  2. Software Support. Is it getting updated regularly? 
  3. Is the tool universal? How many different engine manufacturers does it support?
  4. How much will it cost me? Do I have to pay one-off costs? Is there a subscription involved? If yes, what are the levels? Will I get my money’s worth?


Buying a diagnostic tool license.

Buying a licence and an adapter for a diagnostic tool like eg. Cummins Insite and Cummins Inline WILL NOT automatically solve all of your problems. You need to pair it with certain workshop tools that will COMPLEMENT the diagnostic software.

Due to the complexity of modern engines and the need to monitor many systems, sensors or actuators at the same time, I often use the diagnostic software, a good multimeter and definitely a high-quality oscilloscope with more than 2 channels

Sometimes you cannot buy a diagnostic tool directly from the manufacturer, especially if you are an enthusiast or back-yard mechanic, or even a small repair shop.

To buy a Cummins Insite license for example, you need to complete a training course first and then buy a license from your local Cummins distributor. However, they reserve the right to deny your training request, making it impossible for you to buy a license and do your job!

How much does a Cummins Insite License cost?

An Insite License costs around $1100-$1500. It depends on the type of license (Insite Pro, Insite Lite, Insite Industrial Pro, etc.) and if your business is eligible for special discounts.

Buying diagnostic tools from third-parties

Your first investment should be in buying a good quality multimeter. I prefer to use Fluke multimeters. Easy to use and high-quality. Can’t go wrong here!

My go-to shop choice when it comes to diagnostic equipment is Diesel Laptops. You can pretty much find anything you need there and their prices and support are superb.

Here are my suggestions:

Cummins specific:

Cummins Insite (the diagnostic software) – Annual Subscription

Cummins Inline 7 Datalink Adapter (the hardware) – One-Off cost

Complete Cummins Insite/DieselLink Adapter package (comes with a Diesel Laptops rugged Laptop!)

Universal tools:

TEXA makes a good tool with a modular license structure. If you only work on cars, you buy the car version, if you work on machinery, buy the off-highway version. If you support cars and machinery, you buy the two licenses plus the hardware.

It might be expensive, but it is truly universal. It will save you money on the long run.

TEXA CAR Automotive Diagnostic Tool (comes with Tablet and adapter)

TEXA Dealer Level Truck Diagnostic Scanner Tool with Laptop (literally all you need in one package!)

NexiQ USB Link 2 Adapter. The manufacturer of Cummins Inline 7. Same tool, different sticker, lower price. Don’t forget the diagnostic software!

Just getting started? Don’t want to break the bank?

Heavy & Medium Commercial Truck Diagnostic Starter Kit (Entry-level. Comes with laptop, adapter and software)


For me, this is a monopoly. PicoScope. End of the story.

Diesel Laptops offer their branded version. Same thing, but in a neat yellow color!

All kits include the newest 4-channel oscilloscope, high-quality cables, a current clamp for non-invasive testing and a carry bag. Just add a laptop!

Basic Oscilloscope Kit

Standard Oscilloscope Kit (extra current clamp and fuse extension leads to measure current)

Advanced Oscilloscope Kit (same as standard kit plus an extra current clamp, WPS500X Pressure Transducer and some other goodies! – My kit of choice)E


Post author
Picture of George Sarimpalidis

George Sarimpalidis

I've got a long experience as technical trainer and training course developer. My specialization is diesel engines and electronic management systems. I love learning about how everything works and then explaining complex systems in a way that everybody understands. The more complex, the better!

Some posts may contain affiliate links. By clicking on them and completing a transaction on the merchant’s website, I earn a small commission at no extra cost to you. This keeps this site running and allows me to keep creating content. Thank you in advance for your support! logo

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