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Everything You Need to Know About Cummins Engine Serial Numbers


Cummins Engine Serial Number Decoder: A Complete Guide




If you own a Cummins engine, you may have wondered what those numbers on your engine mean. They are not just random digits, but a code that reveals important information about your engine. In this article, we will explain what a Cummins engine serial number is, how to find it, how to decode it, and how to use it for parts and service. By the end of this article, you will be able to identify your engine model, specifications, and history with ease.




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What is a Cummins Engine Serial Number?




A Cummins engine serial number (ESN) is a unique identifier that is assigned to every Cummins engine at the time of manufacture. It is usually stamped or engraved on a metal tag or plate that is attached to the engine block or cover. The ESN can also be found on the owner's manual, warranty card, or invoice of your engine purchase.


What information does it contain?




The ESN contains several segments that provide different information about your engine, such as:


  • The first segment indicates the engine model and series, such as ISX, ISB, QSK, etc.



  • The second segment indicates the critical parts list (CPL) number, which is a code that specifies the configuration and components of your engine.



  • The third segment indicates the horsepower and RPM rating of your engine.



  • The fourth segment indicates the emission statement or certification of your engine, if applicable.



  • The fifth segment indicates the serial number sequence, which is a unique number that distinguishes your engine from others of the same model and CPL.



Why is it important to know?




Knowing your ESN can help you in many ways, such as:


  • It can help you find the right parts and service for your engine.



  • It can help you verify the authenticity and history of your engine.



  • It can help you troubleshoot and diagnose any issues or problems with your engine.



  • It can help you register and claim warranty for your engine.



How to Find Your Cummins Engine Serial Number?




There are two main ways to find your ESN:


Locate the dataplate on your engine




The dataplate is a metal tag or plate that is attached to your engine block or cover. It contains the ESN and other information about your engine. The location of the dataplate may vary depending on the engine model and series. Here are some common locations where you can find the dataplate on different Cummins engines:


Engine Model/SeriesDataplate Location


4BT 3.9 /6BT 5.9The long narrow metal tag that is attached to the front cover/gear housing. If you have lost the tag, look on the left side of the block, when looking from the front of the engine, above the oil cooler housing.


6CTAThe long narrow metal tag that is attached to the front cover/gear housing. If you have lost the tag, look on the left side of the block, when looking from the front of the engine, above the oil cooler housing.


ISBThe datap late is located on the driver's side of the block, just below the head.


ISCThe dataplate is located on the driver's side of the block, just below the head.


ISLThe dataplate is located on the driver's side of the block, just below the head.


ISXThe dataplate is located on the driver's side of the block, just below the head.


QSBThe dataplate is located on the driver's side of the block, just below the head.


QSCThe dataplate is located on the driver's side of the block, just below the head.


QSLThe dataplate is located on the driver's side of the block, just below the head.


QSXThe dataplate is located on the driver's side of the block, just below the head.


QSKThe dataplate is located on the top of the rocker cover or valve cover.


If you have trouble finding the dataplate on your engine, you can refer to this [guide] from Cummins for more details and illustrations.


Use online tools to look up your engine information




If you cannot access or read your dataplate, you can still find your ESN and other engine information by using online tools provided by Cummins. Here are some of them:


  • [QuickServe Online]: This is a comprehensive online portal that offers access to parts and service information for over 15 million Cummins engines. You can register for a free account and enter your ESN to get customized information for your engine, such as parts catalog, service manuals, bulletins, warranty data, and more.



  • [Cummins Care]: This is a customer service program that offers 24/7 support for Cummins customers. You can call 1-800-CUMMINS or use the online chat feature to get in touch with a Cummins representative who can help you find your ESN and answer any questions you may have about your engine.



  • [Cummins Parts Catalog]: This is an online tool that allows you to search for parts by ESN, part number, or keyword. You can also browse by engine model and series to find the parts you need.



How to Decode Your Cummins Engine Serial Number?




Once you have found your ESN, you can decode it to learn more about your engine. The ESN consists of several segments that are separated by dashes or spaces. Each segment has a specific format and meaning that can be explained as follows:


Understand the format and meaning of each segment




The first segment of the ESN indicates the engine model and series. It consists of two or three letters that represent the abbreviation of the engine name. For example, ISX stands for Interact System X, QSK stands for Quantum System K, etc. The engine model and series determine the basic design and features of your engine.


The second segment of the ESN indicates the critical parts list (CPL) number. It consists of four digits that represent a code that specifies the configuration and components of your engine. The CPL number determines the fuel system, injectors, turbochargers, pistons, camshafts, valves, and other parts that are used in your engine. The CPL number also determines the compatibility and interchangeability of parts among different engines.


The third segment of the ESN indicates the horsepower and RPM rating of your engine. It consists of four digits that represent two numbers separated by a slash. The first number indicates the horsepower rating of your engine at a certain RPM level. The second number indicates the RPM level at which the horsepower rating is measured. For example, 400/1800 means that your engine has a horsepower rating of 400 at 1800 RPM. The horsepower and RPM rating determine the performance and efficiency of your engine.


The fourth segment of the ESN indicates the emission statement or certification of your engine, if applicable. It consists of one or two letters that represent the abbreviation of the emission standard or regulation that your engine complies with. For example, E stands for EPA (Environmental Protection Agency), C stands for CARB (California Air Resources Board), U stands for EU (European Union), etc. The emission statement or certification determines the level of emissions and pollution that your engine produces.


The fifth segment of the ESN indicates the serial number sequence, which is a unique number that distinguishes your engine from others of the same model and CPL. It consists of six digits that are assigned in ascending order as the engines are manufactured. The serial number sequence determines the identity and history of your engine.


Use examples to illustrate the decoding process




To help you understand how to decode your ESN, here are some examples of different Cummins engines and their ESNs:


Engine Model/SeriesESNDecoded Information


ISX1579561234


  • Engine model and series: ISX15 (Interact System X15)



  • CPL number: 7956 (specifies the configuration and components of the engine)



  • Horsepower and RPM rating: 1234 (450/1800, meaning 450 horsepower at 1800 RPM)



  • Emission statement or certification: none (not applicable for this engine)



  • Serial number sequence: 1234 (unique number assigned to this engine)



QSK60QSK60-2356-600/2100-E-567890


  • Engine model and series: QSK60 (Quantum System K60)



  • CPL number: 2356 (specifies the configuration and components of the engine)



  • Horsepower and RPM rating: 600/2100 (2700 horsepower at 2100 RPM)



  • Emission statement or certification: E (EPA compliant)



  • Serial number sequence: 567890 (unique number assigned to this engine)



ISB6.7ISB6.7-2888-300/2600-C-123456


  • Engine model and series: ISB6.7 (Interact System B6.7)



  • CPL number: 2888 (specifies the configuration and components of the engine)



  • Horsepower and RPM rating: 300/2600 (300 horsepower at 2600 RPM)



  • Emission statement or certification: C (CARB compliant)



  • Serial number sequence: 123456 (unique number assigned to this engine)



As you can see, by decoding your ESN, you can learn a lot about your engine model, specifications, and history.


How to Use Your Cummins Engine Serial Number for Parts and Service?




Now that you know how to find and decode your ESN, you may wonder how to use it for parts and service. Here are some tips on how to do that:


Find genuine Cummins parts for your engine model




If you need to replace or upgrade any parts on your engine, you should always use genuine Cummins parts that are designed and tested for your engine model and CPL. Using non-genuine or incompatible parts may cause damage or performance issues to your engine. To find the right parts for your engine, you can use your ESN to search on the [Cummins Parts Catalog] online tool, or contact a Cummins authorized dealer or distributor near you.


Request a quote or schedule a service from Cummins




If you need to get a quote or schedule a service for your engine, you can use your ESN to get customized information and support from Cummins. You can use the [QuickServe Online] portal to access parts and service information, request a quote, schedule a service, or contact a Cummins representative. You can also use the [Cummins Care] program to get 24/7 support from Cummins experts who can help you with any questions or issues you may have about your engine.


Conclusion




In conclusion, a Cummins engine serial number is a code that reveals important information about your engine, such as model, specifications, and history. Knowing how to find and decode your ESN can help you find the right parts and service for your engine, as well as verify its authenticity and history. You can use online tools provided by Cummins to look up your ESN and other engine information, or contact Cummins for support and assistance. We hope this article has helped you understand what a Cummins engine serial number is and how to use it for your benefit.


FAQs




Here are some frequently asked questions about Cummins engine serial numbers:


  • Q: How can I tell if my Cummins engine is original or rebuilt?



  • A: You can tell if your Cummins engine is original or rebuilt by checking the ESN on the dataplate and comparing it with the ESN on the block. If they match, then your engine is original. If they do not match, then your engine is rebuilt or remanufactured.



  • Q: How can I tell the year of manufacture of my Cummins engine?



  • A: You can tell the year of manufacture of your Cummins engine by checking the ESN on the dataplate and looking for the date code. The date code is usually located at the end of the ESN and consists of two letters that represent the month and year of manufacture. For example, AB means January 1998, AC means February 1998, and so on.



  • Q: How can I check the warranty status of my Cummins engine?



  • A: You can check the warranty status of your Cummins engine by using your ESN to access the [QuickServe Online] portal and logging in to your account. You can then view the warranty data for your engine, such as coverage, expiration date, claims, and more.



  • Q: How can I update or change the information on my Cummins engine dataplate?



  • A: You can update or change the information on your Cummins engine dataplate by contacting a Cummins authorized dealer or distributor near you and requesting a new dataplate. You will need to provide proof of ownership and identity, as well as the reason for the change. You may also need to pay a fee for the new dataplate.



  • Q: How can I get more information or support for my Cummins engine?



  • A: You can get more information or support for your Cummins engine by visiting the [Cummins website] or calling 1-800-CUMMINS. You can also use the [Cummins Care] program to get 24/7 support from Cummins experts who can help you with any questions or issues you may have about your engine.



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