Xterra 4WD V6-3.3L SC (VG33ER) (2003)
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Checking and adjusting plug gap is not required between change intervals.
Spark plug (Double platinum-tipped type)
Gap (Nominal) : 1.1 mm (0.043 inch)
3. Install spark plugs. Reconnect ignition wires according to numbers indicated on them.
Spark plug : 20 - 29 Nm (2.0 - 3.0 kgf-cm, 14 - 22 ft. lbs.)