2008 Kia Optima Spark Plugs

28 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.

  • NGK Ruthenium HX Spark Plug (FR5AHX): High Ignitability & Durability, 95839

    NGKMPN 95839New

    In stock

    $19.99

    Listed as compatible with this vehicle by the retailer feed.

    Check price
  • DENSO Iridium Long-Life Spark Plug: OE Performance, SK16PR-A11, 3356

    DENSOMPN 3356New

    In stock

    $21.99

    Listed as compatible with this vehicle by the retailer feed.

    Check price
  • NGK Laser Iridium Spark Plug (IFR5E11): Fine Wire Tip for Efficiency, 7994

    NGKMPN 7994New

    In stock

    $23.99

    Listed as compatible with this vehicle by the retailer feed.

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  • NGK Laser Iridium Spark Plug (ILFR5B11): Fine Wire Tip for High Efficiency, 1637

    NGKMPN 1637New

    In stock

    $27.99

    Listed as compatible with this vehicle by the retailer feed.

    Check price

This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.