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HO Confirmation

jlak

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Is there a specific way to tell whether the Cummins in my 2024 is actually a high output version?

Obviously there are ways to tell that it should be an HO, and for mine all of the following say so: build sheet, window sticker, transmission dip stick on the driver's side, Mopar VIN lookup, eighth digit is 'L', BCM VehConfig 7.

What I am asking really is if you had access to the engine itself, including the OBD, is there a way to tell that this particular engine should potentially provide 1,075 lb-ft of torque?

The reason for this question is a few weeks ago I discovered AlfaOBD. I then continued the discovery with OBDLink and the SAE PIDs and came across the torque PIDs. One in particular, Engine reference torque, started me down this path as it's value was 850.41 lb-ft, which seemed a bit odd for an HO. A screenshot from OBDLink:

torque.png Edit: Screenshot_20260213-174502.Moto App Launcher.png

I am guessing the ECU uses the reference torque as a baseline and cycles between each torque 'point' based on demand, but, is there a way, either via a placard, AlfaOBD, OBDLink, etc. to tell that this specific engine is rated for 1,075 lb-ft?

Edit: I found more information from OBDLink's enhanced diagnostics / ECM (diesel) category / Duty Cycle Common Data PIDs (added above). Also, Cummins QuickServe markets this engine as a 'B6.7 420'.
 
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I thought the same thing when I first read the post, but upon further examination, that was already mentioned by the op.
It was.

I’m just reaffirming that being the easiest way is all. No need to complicate something so simple lol
 
In the BCM log:

VehConfig 7:
___________________

Automatic transmission type: Aisin HD
Mine says the same. I will add this to the "should" list. I dug a little deeper with OBDLink's enhanced diagnostics PIDs and found some specific references in the ECM (diesel) category. The Duty Cycle Common Data ones say this engine provides 314 kW and 1074.63 lb-ft. AlfaOBD doesn't provide that information, that I could tell, from within the engine function. Also, per Cummins and the ESN, this engine is a 'B6.7 420', which I'm sure most already know, but it confirms the other information.

Would you happen to know where the dataplate is on these engines?

Nice reference at post #6 btw.
 
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