10 Best Iridium Spark Plugs 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 414 products, scanning 1755 reviews, spending more than 36 hours of research and speaking with our test users, we think the NGK 5464 BKR5EIX-11 Iridium IX Spark Plug is the one of the Best Iridium Spark Plugs on the market.

# Image Name Brand Price
1
⭐Best Choice
NGK 5464 BKR5EIX-11 Iridium IX Spark Plug
NGK 5464 BKR5EIX-11 Iridium IX Spark Plug, Pack of 4 Check price NGK $$$$$ Check price
2
💲Best value for the money
NGK 2667 BKR7EIX Iridium IX Spark Plug
NGK 2667 BKR7EIX Iridium IX Spark Plug, Pack of 4 Check price NGK $$$$$ Check price
3
Best under $50
Bosch 9620 Double Iridium Pin to Pin Spark Plug
Bosch 9620 Double Iridium Pin to Pin Spark Plug, Up to 4X Longer Life (Pack of 4) Check price Bosch Automotive $$$$$ Check price
4 8 New NGK Iridium IX Spark Plugs TR55IX # 7164 8 New NGK Iridium IX Spark Plugs TR55IX # 7164 Check price NGK $$$$$ Check price
5 6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469 6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469 Check price NGK $$$$$ Check price
6 Bosch Automotive 9614 Double Iridium OE Replacement Spark Plug Up Bosch Automotive 9614 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (4 Pk) CSX, Acura: MDX, RL, RSX, TL, TSX, Accord, Civic, CR-V, Element, Honda Fit, 4 Pack Check price Bosch Automotive $$$$$ Check price
7 NGK 6619 Iridium Spark Plugs LFR6AIX-11 NGK 6619 Iridium Spark Plugs LFR6AIX-11 - 6 PCS *NEW* Check price NGK $$$$$ Check price
8 6 New NGK Iridium IX Spark Plugs BKR6EIX-11 # 3764 6 New NGK Iridium IX Spark Plugs BKR6EIX-11 # 3764 Check price NGK $$$$$ Check price
9
👑Premium Pick
NGK # 1465 Laser Iridium Spark Plug IZTR5B11
NGK # 1465 Laser Iridium Spark Plug IZTR5B11 --- 8 PCS *NEW* Check price NGK $$$$$ Check price
10 ACDelco 41110; Spark Plug ACDelco 41110; Spark Plug - Ac No. 41-110 Professional Iridium Spark Plug Made by ACDelco (8-pack) Check price ACDelco $$$$$ Check price

NGK 5464 BKR5EIX-11 Iridium IX Spark Plug – Best Overall Iridium 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 2667 BKR7EIX Iridium IX Spark Plug – Best Budget Iridium Spark Plug

NGK 2667 BKR7EIX 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: BKR7EIX

Bosch 9620 Double Iridium Pin to Pin Spark Plug – Best under $50

Bosch 9620 Double Iridium Pin to Pin Spark Plug
  • Double Iridium firing pin and ground electrode pin provide 4X longer service life compared to standard copper plugs
  • 0.6mm fine wire firing pin provides superior ignitability and performance
  • 360° continuous laser weld fuses corrosion resistant precious metal firing pin to base for increased durability
  • 7 year performance satisfaction guarantee
  • Original equipment, pre-gapped replacement delivering optimum fit, form and function

8 New NGK Iridium IX Spark Plugs TR55IX # 7164

8 New NGK Iridium IX Spark Plugs TR55IX # 7164
  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • NGK # 7164
  • Iridium
  • TR55IX
  • 1order = 8 Pieces

6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469

6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469
  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • Iridium
  • 1order = 6 Pieces

Bosch Automotive 9614 Double Iridium OE Replacement Spark Plug Up

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 guarantee
  • 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 6619 Iridium Spark Plugs LFR6AIX-11

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

6 New NGK Iridium IX Spark Plugs BKR6EIX-11 # 3764

6 New NGK Iridium IX Spark Plugs BKR6EIX-11 # 3764
  • Extreme performance upgrade over OEM spark plugs and provide a 40,000 to 50,000 mile service life.
  • Plugs feature a fine-wire Iridium center electrode and Nickel-alloy ground electrodes for maximum engine horsepower and torque.
  • Designed for fuel-injected and turbocharged engines.
  • Precision laser-welded electrode construction.
  • Trivalent Metal Plating has superior anti-corrosion and anti-seizing properties.

NGK # 1465 Laser Iridium Spark Plug IZTR5B11 – Premium Pick

NGK # 1465 Laser Iridium Spark Plug IZTR5B11
  • Laser Iridium Premium
  • 1order = 8 Pieces

ACDelco 41110; Spark Plug

ACDelco 41110; Spark Plug
  • Iridium
  • 1order = 8 Pieces

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