10 Best Iridium Spark Plugs 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 599 products, scanning 515 reviews, spending more than 36 hours of research and speaking with our test users, we think the Bosch Automotive 9614 Double Iridium OE Replacement Spark Plug Up is the one of the Best Iridium Spark Plugs on the market.

Bosch Automotive 9614 Double Iridium OE Replacement Spark Plug Up – Best Overall Iridium Spark Plug

Bosch Automotive 9614 Double Iridium OE Replacement Spark Plug Up
  • Double Iridium firing pin and ground electrode inlay provide 4X longer service life compared to standard copper plugs
  • 0.6mm fine wire firing pin provides superior ignitability and performance
  • 360 Degree continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability
  • 7 year performance satisfaction
  • Original equipment, pre-gapped replacement delivering optimum fit, form and function
  • 07-10 Acura CSX, 07-09 Acura MDX, 05-08 Acura RL, 02-06 Acura RSX, 04-08 Acura TL, 04-08 Acura TSX, 03-07 Honda Accord, 02-11 Honda Civic, 02-09 Honda CR-V, 03-11 Honda Element, 14 Honda Fit

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

NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug

NGK 6441 ZFR6FIX-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: ZFR6FIX-11

ACDelco 41-993 Professional Iridium Spark Plug (Pack of 4) – Best Budget Iridium Spark Plug

ACDelco 41-993 Professional Iridium Spark Plug (Pack of 4)
  • 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 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

NGK 6418 Iridium Spark Plugs BKR6EIX

NGK 6418 Iridium Spark Plugs BKR6EIX
  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • Better Performance
  • Good Brand Name NGK
  • IRIDIUM
  • 1order = 6 Pieces

Set of 6 QYL Iridium Spark Plugs Replacement# BKR6EIX-11 3764

Set of 6 QYL Iridium Spark Plugs Replacement# BKR6EIX-11 3764
  • Please check your car model in the Amazon Fitment Filter System in the top left corner. Compatibility information provided is for reference only. Please make sure to match the exact part numbers between this part and the part that you are replacing.
  • Spark Plugs Replace Part Number: BKR6EIX-11, 3764, 1UNA18110, 22401AA500, 3540, 980795614EHE, 9900079K60KR6, 99906910X9007, BKR6EIX11, BKR6EVX11, BY481BKR6E, JE4318110, MZ602066
  • Spark Plugs Fits: For Pontiac Saab Scion Subaru Suzuki Toyota Volvo Plymouth Nissan Mitsubishi Mercury Mercedes-Benz Mazda Lexus Kia Jeep Jaguar Isuzu Infiniti Honda GMC Ford Dodge and more.
  • Extreme performance upgrade over OEM spark plugs and provide long service life.
  • Faster Starts, Improved Fuel Economy,Enhanced flame propagation for increased engine efficiency.

NGK 3657 Laser Iridium Spark Plug IZFR5K11 – Premium Pick

NGK 3657 Laser Iridium Spark Plug IZFR5K11
  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • GOOD BRAND NAME NGK
  • GOOD PERFORMANCE
  • Laser Iridium Spark Plug
  • 1order = 6 Pieces

NGK LKR7DIX-11S Spark Plug (93175 Iridium Ix)

NGK LKR7DIX-11S Spark Plug (93175 Iridium Ix)
  • 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

Similiar Categories