07 pete 387 c15 vs 09 pete 387 isx

I hear a dpf can be troublesome. Since you aren't going to CA, the non dpf might be the way to go. It seems the cat acert seems to be dependable. I would take the '07. Good luck.

 

The 07 has a 13 which helps on hills. the 3.55s are also decent but I prefer 3.70s because they are more versatile. 07's aren't that bad. Check the serial number on it. That will tell you if its an emissions motor or not. I would need to find the number that specifies this. When i find it I will post it. Early 07 is good, late 07 is bad. If it was me between these two I would take the 07. You should get atleast 6.5 loaded depending upon how you run. I get that in my driving style which is fast and my loads are heavy.

 

SDP is the serial prefix to worry about on that motor. That will tell you it has a DPF/CGI emission garbage set up. NXS is PRE DPF & the route to go if all else is equal in terms of the remaining parts of the truck are good vs the 2009.

 

SDP is the one to stay clear of. If it has it, then dpf is in the motor.

 

I would definitely go with the 2007 but depending on how it was specd when new it may have a diesel catalytic converter on it my 2006 387 c-15 did we had two 07 379's that had them also. Very easy to remove and replace with a piece of pipe.