Denso 3377 - DENSO Iridium Long Life Spark Plugs
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DENSO Iridium Long Life Spark Plugs
DENSO Iridium Long Life Spark Plugs are specifically designed long life, durability, and performance. A fine 0.7mm wire iridium center electrode is laser welded and matched to a platinum ground electrode. This process developed by DENSO dramatically extends the life and performance. These plugs are designed to perform for over 100,000 miles.