I think I've located the codes that I need but I'm not sure

[DJTM79]

I'll post a picture of the only numbers I've seen on the ECM. Any help is appreciated.

[Power Hungry]

Good day!

The ECM Label you sent is from a Navistar "1-Box" setup. This will use the Orion Reflash system which is what you will need to reflash the ECM.

For more information, please visit here: https://orionreflash.com

I hope this is helpful.