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2006
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Grand Cherokee Overland, RWD
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Preliminary Service Specifications
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Spark Plugs
Spark Plugs
SPARK PLUG SPECIFICATIONS
ENGINE
PLUG TYPE
ELECTRODE GAP
3.7L V-6
ZFR6F - 11G (NGK)
1.1 (0.042 in.)
4.7L V-8
RC12MCC4
1.01 mm (.040 in.)
5.7L V-8
Champion - RE14MCC4
1.14 mm (.045 in.)