I do bieve that Cummins will suit better the 2013 Jk Diesel instead the actual VM Motori diesel (see CRD export models).
I say this as owner of a JK equiped with a Diesel common rail, 4 cyl, 2777cc, 177Hp, 428RA type, VM Motori with 120k km round the clock after 3years:
- Injector 4 problems
-...