2012 Kia Optima Spark Plugs

17 products listed as compatible with this vehicle by the retailer feed.

  • Champion Copper Plus Spark Plug RER8MC - Dependable Performance & Durability, 445

    ChampionMPN 445New

    In stock

    $7.99

    Listed as compatible with this vehicle by the retailer feed.

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  • E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.80

    E3MPN E3.80New

    In stock

    $8.49

    Listed as compatible with this vehicle by the retailer feed.

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  • Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5703

    Autolite IridiumMPN XP5703New

    In stock

    $11.49

    Listed as compatible with this vehicle by the retailer feed.

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  • Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Superior Ignition & Durability, AI6203

    Autolite IridiumMPN AI6203New

    In stock

    $11.49

    Listed as compatible with this vehicle by the retailer feed.

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  • Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5703

    Autolite IridiumMPN AI5703New

    In stock

    $12.49

    Listed as compatible with this vehicle by the retailer feed.

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  • Champion Iridium Spark Plug RER8WMPB - Maximum Performance & Longevity, 9409

    ChampionMPN 9409New

    In stock

    $12.49

    Listed as compatible with this vehicle by the retailer feed.

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  • NGK Laser Iridium Spark Plug (SILZKR8E9G): High Ignitability & Durability, 92422

    NGKMPN 92422New

    In stock

    $16.99

    Listed as compatible with this vehicle by the retailer feed.

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  • NGK Laser Iridium Spark Plug (SILZKR8E8G): High Ignitability & Durability, 97080

    NGKMPN 97080New

    In stock

    $21.99

    Listed as compatible with this vehicle by the retailer feed.

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  • DENSO Iridium Long-Life Spark Plug: OE Performance, ZXU20HCR8, 3479

    DENSOMPN 3479New

    In stock

    $24.99

    Listed as compatible with this vehicle by the retailer feed.

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  • DENSO Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXU16HR11, 3478

    DENSOMPN 3478New

    In stock

    $28.99

    Listed as compatible with this vehicle by the retailer feed.

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  • NGK Laser Iridium Spark Plug (DILKR6C11): High Ignitability & Durability, 93199

    NGKMPN 93199New

    In stock

    $36.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Bosch OE Fine Wire Double Platinum Spark Plug: Enhanced Durability & Performance, 8132

    BoschMPN 8132New

    In stock

    $9.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP6203

    AutoliteMPN APP6203New

    Out of stock

    $6.49

    Listed as compatible with this vehicle by the retailer feed.

    Check price
  • Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5701

    Autolite IridiumMPN XP5701New

    Out of stock

    $11.49

    Listed as compatible with this vehicle by the retailer feed.

    Check price
  • Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP6203

    Autolite IridiumMPN XP6203New

    Out of stock

    $11.49

    Listed as compatible with this vehicle by the retailer feed.

    Check price
  • Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5701

    Autolite IridiumMPN AI5701New

    Out of stock

    $11.49

    Listed as compatible with this vehicle by the retailer feed.

    Check price
  • Autolite Double Platinum Spark Plug: Enhanced Durability & Performance, APP5701

    AutoliteMPN APP5701New

    Out of stock

    $6.49

    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.