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The Best Automotive Replacement Spark Plugs

Looking for the best Automotive Replacement Spark Plugs?

Discover now our comparison of the best Automotive Replacement Spark Plugs. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Spark Plugs are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Spark Plugs in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1
NGK 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
No. 2
NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack
2,097 Consomer Reviews
NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack
  • Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
  • 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 nose prevents fouling, 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
SaleNo. 3
NGK Spark Plug SILZKR7B11 9723 Pack of 6
  • 6 pack NGK Laser Iridium 9723 Spark Plug
  • Genuine NGK Parts
  • Includes original packaging and hardware
  • Direct replacement auto parts
  • Confirm vehicle fitment with Amazon Confirmed Fit
No. 4
NGK # 3186 G-Power Platinum Spark Plugs TR5GP - 8 PCSNEW
  • G-Power Platinum
  • Designed to operate over a much wider heat range than ordinary plugs
  • Resists carbon buildup and pre-ignition
  • Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
No. 6
NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCSNEW
  • Iridium Spark Plugs
  • Designed to operate over a much wider heat range than ordinary plugs
  • Resists carbon buildup and pre-ignition
  • Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
SaleNo. 7
NGK Spark Plug SILZKBR8D8S 97506 Pack of 6
  • 6 pack NGK Laser Iridium 97506 Spark Plug
  • Genuine NGK Parts
  • Includes original packaging and hardware
  • Direct replacement auto parts
  • Confirm vehicle fitment with Amazon Confirmed Fit
No. 8
NGK (4469) LFR5AIX-11 Iridium IX Spark Plug (8 Pack)
  • 8 pack NGK Iridium IX 4469 Spark Plug
  • Genuine NGK Parts
  • Includes original packaging and hardware
  • Direct replacement auto parts
  • Confirm vehicle fitment with Amazon Confirmed Fit
No. 9
BOSCH 9621 OE Fine Wire Double Iridium Spark Plug - Pack of 4
  • Bosch Double Iridium Spark Plugs feature both an iridium firing pin and an iridium ground electrode inlay that offer higher performance and 4X longer life compared to standard copper spark plugs
  • 360-degree laser welded ultra-fine wire iridium firing pin provides better ignitability - reducing voltage requirements up to 24% - and enhanced durability
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - making installation quick and easy
  • Bosch Double Iridium spark plugs are pre-gapped at the factory and ready to install right out of the box - gap adjustment prior to installation not required
  • Meets or exceeds manufacturer design requirements for OE fit, form, and function for modern gasoline engines - including Gasoline Direct Injection (GDI) engines
  • Compatible with select vehicles (Note: engine affects fitment - verify specific fitment details with amazon confirmed fit fit checker above): INFINITI: 2008-12 EX35, 2013 EX37, 2009-12 FX35, 2013 FX37, 2009-13 FX50, 2011-12 G25, 2007-08 G35, 2008-13 G37
  • Compatible with (continued):LEXUS: 2013 JX35, 2009-10 M35, 2012-13 M35h, 2011-13 M37, 2011-13 M56, 2015 Q40, 2014-18 Q50, 2014-16 Q60, 2014-19 Q70, 2015-19 Q70L, 2014-17 QX50, 2011-13 QX56, 2014-23 QX60, 2014-20 QX70, 2014-23 QX80
  • Compatible with (continued): MAZDA: 2015-16,2018-21 2, 2012-23 3, 2014-21 6, 2016-21 CX-3, 2020-23 CX-30, 2013-23 CX-5, 2023 CX-50, 2016-23 Miata; NISSAN: 2007-09 350Z, 2009-20 370Z, 2007-23 Altima, 2017-22 Armada, 2006-08 Frontier, 2020-23 Frontier
  • Compatible with (continued): NISSAN: 2009-23 Maxima, 2009-23 Murano, 2020 NV200, 2018-21 NV2500, 2018-21 NV3500, 2013-23 Pathfinder, 2011-17 Quest, 2008-13 Rogue, 2014-15 Rogue Select, 2007-22 Sentra, 2017-23 Titan, 2016-23 Titan XD
  • Compatible with (continued): PONTIAC: 2009-10 Vibe; SCION: 2016 iA; TOYOTA: 2016-20 Yaris, 2017-18 Yaris iA, 2016-20 Yaris R
No. 10
6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469
  • Extreme performance upgrade via OEM spark plugs and provide a lifetime at 40,000 50,000 miles.
  • Plugs have a fine-wire Iridium center electrode and nickel-alloy terrain electrodes for maximum engine and torque.
  • Designed for fuel-injected and turbo engines.
  • Precision laser electrode construction.

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Last update on 2025-04-11 / Affiliate links / Images from Amazon Product Advertising API