2008 Freetrack 170 (PD) glow plugs part number?

[Mud]

Hi everyone. So my new Freetrack still doesn't start very well. I have been trying to find a set of glow plugs to try but, I can't seem to find the part number for the 170 TDI PD variant? There seem to be numerous options for the 140 TDI but not the 170? Can anyone confirm what I need please? Thanks!