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Spark Plugs

SPARK PLUG SPECIFICATIONS

Application Specification
  Metric English
Spark Plug Gap
3.8L 1.52 mm 0.060 in
5.3L 1.02 mm 0.040 in
Spark Plug Torque 15 N.m 11 lb ft
Spark Plug Type
3.8L GM P/N 12568387
5.3L GM P/N 12571164
AC Spark Plug P/N 41-985
Spark Plug Wire Resistance
3.8L 3000 ohms per ft
5.3L 3188-312 ohms