Used ECM
06-23-2023, (Subject: Used ECM ) 
Post: #1
Used ECM
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I’ve been considering ordering a used CM870 ECM to have as a spare and having my local dealership flash the latest program on it. How do I know which ECM is compatible with my engine other than just matching the part number from my current ECM?
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06-23-2023, (Subject: Used ECM ) 
Post: #2
RE: Used ECM
match the part# up.

I hope that you are also are aware that the software for the CM870's has not been updated by cummins since about 2012 or so (10+ years ago) .. so having it 'updated' is pretty much fruitless at this point if your existing ecm was updated, replaced, re-flashed, etc. at some point in its distant past.


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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 Thanks given by: Andre_The_Giant
06-23-2023, (Subject: Used ECM ) 
Post: #3
RE: Used ECM
Thank you, that’s simple enough.
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