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2007
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Optima L4-2.4L VIN 3
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Repair and Diagnosis
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Ignition System
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Spark Plug
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Specifications
Spark Plug: Specifications
Spark Plug
NGK
SK16PR-11
Champion
RC 10YC4
GAP
1.0 - 1.1 mm (0.0394 - 0.0433 in.)