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Home >> Hummer >> 2003 >> H2 V8-6.0L >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Spark Plug >> Specifications
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Spark Plug: Specifications

Spark Plug Gap 1.02 mm (0.040 in.)

Spark Plug Torque
Used Heads 15.0 Nm (11.0 lb. ft.)
New Aluminum Heads 20 Nm (15 lb ft.)
New Iron Heads 30 Nm (22 lb ft.)