Top 10 Best Spark Plugs for Kia Optima Series

192422 Iridium Platinum Spark Plugs 4 Pack For Hyundai Kia

Best in Budget

• 【Replacement Part Number】Repalce for NGK 92422 SILZKR8E9G.
• 【Compatible Models】The Spark Plugs are Compatible with Hyun dai 2013-2018 Santa Fe Sport L4 2.0L, 2011-2017 Sonata L4 2.0L, 2011-2015 Sonata L4 2.4L; Compatible with Kia 2011-2018 Optima L4 2.0L,2011-2016 Optima L4 2.4L, 2016-2018 Sorento L4 2.0L, 2011-2019 Sportage L4 2.0L.
• 【Specification】Center Electrode Tip Material: Iridium‑Platinum; Center Electrode Core Material: Ni‑Cu; Center Electrode Insulator Tip Projection: 5.0 mm; Resistance: 5000.0 ohms; Pre‑Gap Size: 0.0354 IN; Hex Size: 0.630 IN; Insulator Height: 52±1.5 mm; Reach: 26.5 mm; Thread Diameter: M12; Skirt Length: 9.1mm; Manufacturer Heat Range: 8.
• 【Notic】Please verify the required spark plug specifications for your vehicle, including thread size, thread pitch, thread reach, and recommended gap, before purchase.
• 【Buy with Confidence】We provide a 12-month replacement or refund. If you have any issues, please contact us via Amazon messages, and we will reply within 12 hours.

24 pc NGK Iridium IX Spark Plugs compatible with Kia Optima 2.4L L4 2016-20

Editor’s Pick

• This 4 pack NGK Iridium IX Spark Plug is compatible with Kia Optima 2020, 2019, 2018, 2017, 2016 2.4L L4
• Genuine NGK Parts
• Includes original packaging and hardware
• Direct replacement auto parts
• Confirm vehicle fitment with Amazon Confirmed Fit

3A-Premium Double Iridium Spark Plugs Pack of 4, Fine Wire, 2.4L L4 Engine

People’s Choice

• [Reference Number]: A-Premium Spark Plugs fit for 93199, DILKR6C11
• [Vehicle Fitment]: Compatible with Sonata spark plugs; Compatible with Hyundai Santa Fe Sport 2013-2015 L4 2.4L, Sonata 2011-2014 L4 2.4L, Tucson 2014-2015 L4 2.4L; Compatible with Kia Optima 2011-2015 L4 2.4L, Sorento 2012-2014 L4 2.4L, fit for Sportage 2014-2015 L4 2.4L
• [Specifications]: ①Eletrode Tip Material: Double Iridium; ②Seat Type: Flat; ③Installation Torque 15-20 N.m; ④Pre-Gap Size: 0.039-0.044 IN, 1.0-1.1 mm; ⑤Hex Size: 5/8 IN, 16 mm; ⑥Insulator Height: 2.01 IN, 51.0 mm; ⑦Reach: 1.043 IN, 26.5 mm; ⑧Thread Size: M12-1.25
• [Fine Iridium Tip]: Fine iridium tips focus the spark for easier ignition and more complete combustion. This helps crisp throttle response and efficient performance under changing engine loads.
• [Extensive Mileage Range]: For optimal engine performance and longevity, it is recommended to replace double iridium spark plugs at mileage intervals over 100,000 miles

4NGK LKR7DIX-11S Iridium IX Spark Plug (93175 Iridium Ix), 4 Pack

• Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response
• The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
• Longer insulator , the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
• Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
• Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties. Resistor Value-5K Ohm. Hex Size-5/8 inch

5Ignition Coil Packs and Iridium Spark Plugs Set Fit for Hyundai 2015-2019 Sonata Santa Fe Sport Tucson Kia 2017-2022 Sportage Optima Sorento 2.4L L4, 4 Packs Direct Replace UF764 93175

• RESTORE PEAK PERFORMANCE & SAVE FUEL: Unlock horsepower, boost throttle response, cut gas costs. Worn ignition parts lose power and waste fuel. Autoexact high-performance coil & iridium plugs deliver stronger, stabler sparks for full combustion—smoother acceleration, less shaking, better fuel economy.
• ELIMINATE MISFIRE & ROUGH IDLE: Tired of shaking, check engine light (P0300-P0308 codes) or poor starting? Autoexact ignition coil and spark plug set fixes these issues, restoring smooth, quiet engine run. Enjoy reliable starts every time.
• PREMIUM IRIDIUM & OE-QUALITY: Pre-gapped fine-wire iridium spark plugs (up to 40,000 miles life) ensure full combustion for max power and fuel economy. Epoxy-potted, heat-resistant ignition coils deliver strong ignition energy and durability—better than standard OEM parts.
• DIRECT OE REPLACEMENT & EASY DIY: 100% OEM fit, no mods needed, plug-and-play. Made for your vehicle’s make, model & VIN. Factory pre-lubricated with green dielectric grease for true plug-and-play installation. Recommended torque: 11.06-14.75 ft·lb (15-20 N·m). Package Contents: 4pcs Ignition Coils Packs, 4pcs Iridium Spark Plugs. Refer to the install guide on the product detail page, DIY with basic tools, save on dealership labor.
• COMPATIBILITY: 2015-2019 Hyundai Sonata 2.4L, 2017-2022 Kia Sportage 2.4L, 2016-2020 Kia Optima 2.4L, 2016-2020 Kia Sorento 2.4L, 2019-2020 Hyundai Santa Fe 2.4L, 2017-2018 Hyundai Santa Fe Sport 2.4L, 2018-2021 Hyundai Tucson 2.4L

6Motorevo 2.4L Ignition Coil Pack for Hyundai Sonata 2011-2014 UF611 XP6203

• [Vehicle Fitment-1]: Ignition Coil Pack and Spark Plugs Direct replacement Compatible with Hyundai Sonata 2011-2014 2.4L L4 | Santa Fe Sport 2013-2015 2.4L L4 | Tucson 2014-2015 2.4L L4 | Accent 2020-2021 1.6L L4. Precision-engineered for exact OE fit.
• [Vehicle Fitment-2]: Coil Packs and Spark Plugs Kit Also Compatible with Kia Optima 2011-2016 2.4L L4 | Sorento 2012-2015 2.4L L4 | Sportage 2014-2015 2.4L L4 | Soul 2016-2019 1.6L L4 | Soul 2016 2.0L L4. Ensures easy installation across all listed models.
• [Replace OEM Number]: Spark Plugs and Coil Packs Matches OE specifications: UF611+XP6203(Spark Plugs), UF-611, GN10568, 6738311, 273003F100, 3002G000, 273002G000, UF611T, 5C1724, 48939, C773, C1667, C1669.
• [Enhanced Driving Experience]: Engineered for quick ignition and fuel saving, delivering 10-15% faster cold starts and smoother acceleration. High-temp resistance ensures stability in extreme conditions, while all-weather design prevents misfires and optimizes engine efficiency.
• [High-quality Materials]: Made of durable copper windings and a robust ceramic insulator, this ignition coil kit withstands high temperatures and harsh conditions. Steel core with high-grade dielectric insulation ensures consistent performance in all weather conditions. Exceeds OEM durability standards.

7Set of 4 UF764 Ignition Coil Pack & Iridium Spark Plug (2.0L 2.4L) 2015-2021 For Hyundai Santa Fe Sport Sonata Tucson,For Kia Optima Sorento Sportage Stinger

• ❇️【OEM PART NUMBER】UF-764 UF764 IC871 GN10730 E1264 C988 49138 27300-2GGA0 273002GGA0
• ❇️【FITMENT】Compatible with Kia Sorento 2.4L 2016-2020/Sportage 2.4L 2017-2020/Optima 2.4L 2016-2018/Sorento 2.0L 2016, For Hyundai Santa Fe 2.4L 2019-2020/Tucson 2.4L 2018-2020/Sonata 2.4L 2015-2019/Santa Fe Sport 2.4L 2017-2018/Sonata 2.0L 2015/Tucson 2.4L 2018-2021
• ❇️【PREMIUM PERFORMANCE】High conductive copper wire & high dielectric performance epoxy, Precise, corrosion-resistant connections ensure excellent connectivity and lead to a long service life.
• ❇️【STRICT QUALITY CONTROL】Engineered and tested to match or exceed OE for spark energy output, impedance and durability. Manufactured in TS16949 certified facilities, 100% function and leakage tested.
• ❇️【WARRANTY】1 Year.

8Marsram Ignition Coil Pack UF764 Spark Plug for 2016-2020 Kia Optima 2.4L

• [Application1] Ignition Coil Pack Compatible with Hyundai: 2017-2018 Santa Fe Sport Base 2.4L L4, 2019-2020 Santa Fe Limited/SE/SEL 2.4L L4, 2019 Santa Fe SEL Plus/Ultimate 2.4L L4, 2015-2019 Sonata SE /Sport 2.4L L4, 2015-2019 Sonata Limited 2.4L L4, 2016-2017 Sonata Base 2.4L L4, 2015-2019 Sonata Limited 2.0T 2.0L L4, 2018-2019 Sonata SEL 2.4L L4, 2015-2018 Sonata Sport 2.0T 2.0L L4
• [Application2] Ignition Coil Pack Compatible with Hyundai: 2019-2020 Tucson Limited/Ultimate 2.4L L4, 2019-2020 Tucson SEL 2.4L L4, 2018-2020 Tucson Sport 2.4L L4
• [Application3] Ignition Coil Pack Compatible with Kia: 2016-2022 Sportage EX/LX 2.4L L4, 2022 Sportage Nightfall Edition 2.4L L4, 2020-2021 Sportage S 2.4L L4, 2016 Sorento EX/SX Limited 2.0L L4, 2016-2020 Sorento L/LX 2.4L L4, 2016-2018 Optima EX 2.4L L4, 2016-2020 Optima LX 2.4L L4, 2018-2020 Optima S 2.4L L4, 2020 Optima Special Edition 2.4L L4
• [Replaces Part Numbers] Ignition Coil Pack Replacement UF764 27300-2GGA0 GN10730 C988 E1264 IC871. Spark Plug Replacement 93175 LKR7DIX-11S. Please check whether your car model fits our products in the "amazonconfirmfit" at the top left corner before ordering
• [High-quality Ignition Coils] The exterior of our ignition coils are made of epoxy resin and high-strength engineering plastic to prevent the ignition coils from being melted due to overheating of the engine; and the interior of the coils is made of high-conductivity copper coil to increase the ignition speed

9Spark Plugs Iridium 4 Pack, Pre-Gapped Bujías Sparkplugs OEM Replacement for Hyundai Sonata Kia Acura Chrysler Honda Lexus Mazda Mercedes-B-ENZ Mini Mitsubishi

• 【 Fitment Tip】To ensure proper fit, please check your vehicle’s year, make, model, and engine type using Amazon Garage before purchase.
• 【Wide Compatibility – OEM Fit】WJAUTO Iridium spark plugs are OEM replacement parts designed for excellent engine performance and long-lasting ignition reliability.Compatible with Hyundai Kia Acura Chrysler Honda Lexus Mazda Mercedes-B-enz Mini Mitsubishi
• 【 Iridium Spark Plugs 】Each spark plug features a fine iridium Center Electrode Material that ensures faster ignition, better throttle response, and improved fuel efficiency—perfect for daily drivers and performance enthusiasts alike.
• 【 Long Life – Up to 80,000 km Service】 Built with premium iridium materials to resist High temperature resistance, improved combustion efficiency, fast ignition response, reduced carbon deposition, These spark plugs for cars can last up to 80,000 km, outperforming standard copper bujias or platinum options. Fewer replacements, more driving.
• 【 4-Pack Iridium Spark Plugs Set Replacement】 Comes in a convenient 4-pack, ideal for cylinder engines or complete spark plug replacements. Trusted by professional mechanics and DIYers for quality and reliability, giving you a complete replacement solution in one box.

104 pc DENSO Iridium Long Life Spark Plugs for Kia Optima 2011-16

• This 4 pack DENSO Iridium Long Life Spark Plug is compatible with Kia Optima 2016, 2015, 2014, 2013, 2012, 2011 1.6L 2.0L 2.4L L4
• Genuine DENSO parts. Experience DENSO Iridium Long Life spark plugs. A larger spark translates to more power and superior fuel economy. DENSO delivers all-round vehicle performance to a wide range of OE vehicles
• MAXIMUM PERFORMANCE: DENSO Iridium Long Life spark plugs feature a fine-wire 0.4mm iridium center electrode, and a 0.7mm platinum ground electrode, providing sustained spark performance
• IMPROVED DURABILITY: These replacement spark plugs can endure extreme temperatures associated with high-performance ignition systems. A 360 degree laser-welded spark tip, along with tapered cut improves firing performance
• GENUINE QUALITY: All DENSO spark plugs are direct replacement auto parts, and include original packaging. Confirm vehicle fitment with Amazon Confirmed Fit