This is the info for the 2.8d CRDI 2008-11 engine code ENS (51C)
1 Replace Head Bolts
2 Stage 1 Tighten to15 Nm
3 Stage 2 Tighten to 30 Nm
4 Stage 3 Tighten to 85deg
5 Stage 4 Tighten to 85 deg
6 Stage 5 Tighten to 85 deg
Sequence
If it is the 01-08 model 2.8 CRD engine code R2816K4 then it is this one
Stage 1 - Bolts 1 -18 = 30 Nm
Stage 2 - Bolts 1 -10 = 75 deg
Stage 3 - Bolts 11 - 18 = 50 deg
Stage 4 - Bolts 1 - 18 - 75 deg
Sequence
If it is the Grand Cherokee then they fit 3.0 CRD, 4.7, 5.7 and the 6.1 SRT-8 engines. I can supply the details if needed. I hope that helps you.
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