Need engine family code for Detroit

http://www.ipdparts.com/enews/english/assets/IPDTB0020_DD60_Info.pdf
Try this^

 

Last 6 of your vin I can get your engine model number. Assuming the engine hasn't been replaced.

 

99 should be dd4

 

If you mean engine family, as used by EPA, check here:
http://www3.epa.gov/otaq/certdata.htm
There is zip-files with excel for different modelyears you can download
Probably something like this: XDDXH12.7EGL (example for MY1999 12.7)

 

If it's a 99 it will be a ddec4 with out egr .
You got three model codes it could be
Mk60
Tk60
Pk60
Phone your dealer with last 6 digits of your Vin and request the model # of your engine. Not hard assuming that's the original engine as previously stated.

 

Clean off the side of the block. Center section, driver side right below the head is a raised block that should have the ESN and model.

 

If it's for the CARB exemption - I had the same trouble with the N14, so I called CARB, they said "Doesn't matter" and poked the application through regardless.

This is after I had called Cummins to verify their "Engine family" number.

 

Its nnot model number, its engine family, one guy has it right

 

I have what you need but I am not at my truck, if I remember tomorrow I will get it.