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Jeep
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2005
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Wrangler X, Automatic
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Repair and Diagnosis
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Ignition Control
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Specifications
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Spark Plugs
Spark Plugs
ENGINE
PLUG TYPE
ELECTRODE GAP
2.4L 4-Cylinder
RE16MC (Champion #)
0.94 to 1.09 mm (0.037 to 0.042 in.)
4.0L 6-Cylinder
ZFR5N (NGK #)
0.77 mm - 0.90 mm (0.030 in. - 0.035 in.)