Thanks Dazza
According to moparonlineparts:
The part number for the 2009 model is 4801516AA
The part number for the 2014 model is 68080460AB
For 2010 - 2013 they don't list the Diesel.
So I'm still unsure which part, but I'm guessing the 2009.
Thanks TRA1LHAWK
I've had a look at that one, I'd like to go OEM, but if push comes to shove I'll consider the auto8 one.