10 Best Iridium Spark Plugs 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 734 products, scanning 1085 reviews, spending more than 36 hours of research and speaking with our test users, we think the ACDelco is the one of the Best Iridium Spark Plugs on the market.

# Image Name Brand Price
1
⭐Best Choice
ACDelco
ACDelco -12680072 41-110 Professional Iridium Spark Plug (Pack of 4) Check price ACDelco $$$$$ Check price
2 NGK 6619 Iridium Spark Plugs LFR6AIX-11 NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCSNEW Check price NGK $$$$$ Check price
3 NGK 5464 BKR5EIX-11 Iridium IX Spark Plug NGK 5464 BKR5EIX-11 Iridium IX Spark Plug, Pack of 4 Check price NGK $$$$$ Check price
4 HiVehicle New Iridium Spark Plug OE19299585 41 962 HiVehicle New Iridium Spark Plug OE19299585 41 962 - Specially For Chevrolet, GMC, Cadillac, Buick,Hummer,Oldsmobile,Pontiac,Superior quality,8pcs set. Check price N/A $$$$$ Check price
5 NGK 94124 ILKAR7L11 Laser Iridium Spark Plug NGK 94124 ILKAR7L11 Laser Iridium Spark Plug, Pack of 4 Check price NGK $$$$$ Check price
6
💲Best value for the money
Bosch9603Double Iridium OE Replacement Spark Plug
Bosch9603Double Iridium OE Replacement Spark Plug, Up to 4X Longer Life (1 Pk) Acura; Chrysler; Ford; Honda; Infiniti; Jaguar; Lexus; Mercedes-Benz; Mitsubishi; Nissan; Subaru; Toyota +More Check price Bosch $$$$$ Check price
7
👑Premium Pick
8 PCS NEW
8 PCS NEW --- DENSO # 5325 IRIDIUM Power Spark Plugs -- IT16 Check price Denso $$$$$ Check price
8 NGK 7397 TR5IX Iridium IX Spark Plug NGK 7397 TR5IX Iridium IX Spark Plug, Pack of 4 Check price NGK $$$$$ Check price
9 Denso (3297) SK20R11 Iridium Spark Plug Denso (3297) SK20R11 Iridium Spark Plug, Pack of 1 Check price Denso $$$$$ Check price
10 NGK # 6509 Iridium Spark Plug LTR6IX-11 NGK # 6509 Iridium Spark Plug LTR6IX-11 - 6 PCSNEW Check price NGK $$$$$ Check price

ACDelco – Best Overall Iridium Spark Plug

ACDelco
  • Iridium offers better engine idle stability and smoother performance
  • Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration
  • Iridium fine-wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy
  • One piece suppressor seal blocks radio frequencies that can affect vehicle electronics
  • Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage

NGK 6619 Iridium Spark Plugs LFR6AIX-11

NGK 6619 Iridium Spark Plugs LFR6AIX-11
  • Iridium Spark Plugs
  • 1order = 6 Piece

NGK 5464 BKR5EIX-11 Iridium IX Spark Plug

NGK 5464 BKR5EIX-11 Iridium IX Spark Plug
  • 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; Part number of spark plug inside the box: BKR5EIX-11

HiVehicle New Iridium Spark Plug OE19299585 41 962

HiVehicle New Iridium Spark Plug OE19299585 41 962
  • 【High quality from high quality material】:Purified alumina powder insulator from Germany ALMATIS(Model:HVA FG Q06) and Full-automatic isopressing;Iron shell(Model:20# 08 AL) and automatic welding/rolling bending;Central electrode(99% nickel clad copper ) and 360 degree laser welding iridium & platinum
  • 【Reduce the risk】:Updated design reduce the risk of breaking off during working
  • 【Increases Fuel Efficiency】: G-Power Iridium Alloy Spark Plugs offer superior performance with improved fuel efficiency, Acdelco lower emissions, and quicker starts
  • 【Increased conductivity】: Increased conductivity and heat control for good overall. Stability: 0.6mm laser welded fine Platinum tip reduces required voltage ensuring high durability and a consistently stable spark
  • 【Durability】:Trivalent Metal Plating offers superior anti corrosion and anti seizing properties while the triple gasket seal eliminates combustion gas leakage

NGK 94124 ILKAR7L11 Laser Iridium Spark Plug

NGK 94124 ILKAR7L11 Laser Iridium Spark Plug
  • Laser welded Iridium center electrode tip ensures high durability and greater spark
  • Platinum disc welded to backside of ground electrode provides long life
  • Longer insulator nose prevents fouling, Corrugated ribs on insulator prevents flashover, and the triple gasket seal eliminates combustion gas leakage
  • Faster starts and quicker acceleration
  • Better fuel economy and lower emissions, Trivalent Metal Plating for superior anti-corrosion and anti-seizing

Bosch9603Double Iridium OE Replacement Spark Plug – Best Budget Iridium Spark Plug

Bosch9603Double Iridium OE Replacement Spark Plug
  • Fit type: Vehicle Specific

8 PCS NEW – Premium Pick

8 PCS NEW
  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • IRIDIUM POWER
  • DENSO 5325
  • 1order = 8 Pieces

NGK 7397 TR5IX Iridium IX Spark Plug

NGK 7397 TR5IX Iridium IX Spark Plug
  • Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling
  • The 0.6mm 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 - superior anti-corrosion and anti-seizing properties

Denso (3297) SK20R11 Iridium Spark Plug

Denso (3297) SK20R11 Iridium Spark Plug
  • SK20R11
  • Excellent acceleration and performance
  • Stable combustion during idling
  • Long life and high reliability
  • Features iridium with high melting point

NGK # 6509 Iridium Spark Plug LTR6IX-11

NGK # 6509 Iridium Spark Plug LTR6IX-11
  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • Better Performance
  • Good Brand Name NGK
  • Iridium
  • 1order = 6 Pieces

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