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20 Best Denso Iridium Spark Plugs of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best Denso Iridium Spark Plugs of 2023. Check our ranking below.

2,409 Reviews Scanned

SaleRank No. #1
Denso (4704) IKH20TT Iridium TT Spark Plug, (Pack of 1)
  • Denso 4704
  • 0.4mm Iridium Center Electrode
  • 0.7mm Platinum Ground Electrode
  • Larger spark translates to more power and superior fuel economy
  • 0.4 mm iridium center electrode, world's smallest diameter that maximizes firing potential
Rank No. #2
Denso (3297) SK20R11 Iridium Spark Plug, Pack of 1
  • SK20R11
  • Excellent acceleration and performance
  • Stable combustion during idling
  • Long life and high reliability
  • Features iridium with high melting point
Rank No. #3
Denso IXUH22I Iridium Power Spark Plugs 5356-4 PK
  • Tapered cut, U-Groove ground electrode
  • 0.4mm Iridium Tip
  • Patented 360-degree laser welding assembly process
  • Required ignition voltage reduced
  • Unsurpassed center electrode durability
SaleRank No. #4
Denso Spark Plug Iridium TT - 4705
  • Spark Plug Iridium TT
  • Larger spark translates to more power and superior fuel economy
  • Improved Output - Low voltage requirement and high ignitability improves combustion
  • Technologically Advanced - Delivers all-round optimum vehicle performance to a much wider range of OE vehicles at an affordable price
Rank No. #5
Denso (5304) IK20 Iridium Power Spark Plug, (Pack of 1)
  • 0.4 mm iridium center electrode: world's smallest diameter that maximizes firing potential
  • U-groove and taper cut ground electrode: provides faster spark flame growth and lessens heat quenching
  • DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode
  • DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode
Rank No. #6
DENSO # 5349 IRIDIUM Power Spark Plugs -- ITL16 ----- 6 PCS NEW
  • This 6 pack DENSO Iridium Power 5349 Spark Plug replaces DENSO Auto Parts ITL16, Chrysler 6830 3917AA, Chrysler 6830 3913AA, Chrysler 4606 402AB, Chrysler 4686 742AD, Chrysler 5037 404AA, Chrysler
  • REDUCE EMISSIONS AND MISFIRES: The patented DENSO Spark Plug enables complete fuel ignition in the combustion chamber. It virtually eliminates erratic starts caused by poor fuel mixtures and excessive soot buildup. The DENSO Spark Plug employs a unique ground electrode designed to generate a larger spark nucleus at the point of ignition. Greater spark energy means improved flame travel, producing more complete, consistent, and efficient combustion
  • GAIN GREATER FUEL EFFICIENCY: This DENSO Spark Plug fires leaner mixtures than conventional plugs and improves throttle response. Its ground electrode was developed to improve ignitability for increased efficiency in emission gas purification and fuel consumption. The DENSO Spark Plug is 100 percent pre-fired to ensure reliable operation and lasts twice as long as conventional plugs. The unique five-rib insulator reduces flashover and decreases voltage loss
  • RELY ON QUALITY AUTO PARTS: From the development of direct ignition coils to revolutionizing the concept of the aftermarket performance spark plug by using platinum and iridium, DENSO is often on the front lines of product advancement
  • TRUST IN DENSO: The automotive industry has recognized the DENSO commitment to quality through such prestigious awards as the Deming Award for Quality, the J.D. Power and Associates Chairman's Award, and numerous supplier awards for quality
SaleRank No. #7
Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug
  • Single Plug
  • Denso # 3421
  • Extra Long Life Iridium Plug
  • 0.7mm Fine Wire Iridium-Tipped Center Electrode
  • Platinum Tipped Ground Electrode
Rank No. #8
Denso (4702) IK20TT Iridium TT Spark Plug, (Pack of 1)
  • Denso # 4702
  • 0.4mm Iridium Center Electrode
  • 0.7mm Platinum Ground Electrode
  • Larger spark translates to more power and superior fuel economy
  • 0.4 mm iridium center electrode, world's smallest diameter that maximizes firing potential
SaleRank No. #9
Denso (3324) SK16R11 Iridium Spark Plug, 1 Count (Pack of 1)
  • SK16R11
  • Excellent acceleration and performance
  • Stable combustion during idling
  • Long life and high reliability
  • Features iridium with high melting point
Rank No. #10
Denso 3461 Spark Plug
  • Efficient Fuel Consumption
  • Package Dimensions: 9.144 L x 2.286 H x 2.54 W (centimeters)
  • Stronger than platinum
  • Virtually no electrode wear
SaleRank No. #11
Denso (4703) IKH16TT Iridium TT Spark Plug, (Pack of 1)
  • Denso # 4703
  • 0.4mm Iridium Center Electrode
  • 0.7mm Platinum Ground Electrode
  • Larger spark translates to more power and superior fuel economy
  • 0.4 mm iridium center electrode, world's smallest diameter that maximizes firing potential
Rank No. #12
Denso (3457) FXE24HR11 Iridium Long-Life Spark Plug, (Pack of 1)
  • Package Dimensions: 2.286 H x 9.144 L x 2.54 W (centimetres)
  • Virtually no electrode wear
  • Package Weight: 0.100 pounds
  • Country of Origin : Japan
SaleRank No. #13
Denso (5344) IKH20 Iridium Power Spark Plug, (Pack of 1)
  • 0.4 mm iridium center electrode: world's smallest diameter that maximizes firing potential
  • U-groove and taper cut ground electrode: provides faster spark flame growth and lessens heat quenching
  • Its 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode
  • Package Dimensions: 2.286 L x 8.382 H x 2.54 W (centimeters)
SaleRank No. #14
Denso 3444 Spark Plug
  • Denso # 3444
  • Extra Long Life Iridium Plug
  • 0.7mm Fine Wire Iridium-Tipped Center Electrode
  • Platinum Tipped Ground Electrode
Rank No. #15
8 pc DENSO Iridium Power Spark Plugs compatible with Toyota Tundra 4.7L V8 2000-2009
  • This 8 pack DENSO Iridium Power Spark Plug is compatible with Toyota Tundra 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000 4.7L V8
  • Genuine DENSO Parts
SaleRank No. #16
Denso (4711) IXEH20TT Iridium TT Spark Plug, (Pack of 1)
  • Denso # 4711
  • 0.4mm Iridium Center Electrode
  • 0.7mm Platinum Ground Electrode
  • Larger spark translates to more power and superior fuel economy
  • 0.4 mm iridium center electrode: world's smallest diameter that maximizes firing potential.0.7 mm needle tip ground electrode: promotes higher spark energy and less heat quenching.DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode
SaleRank No. #17
DENSO IK16 Iridium Power Spark Plug Ik16 X 4Pieces Ignition Plugs Racing Upgrade
  • Authentic Product
  • Denso Auto Parts Brand
  • Individual Pack
  • Denso Auto Parts Part #IK16 5303
  • Brand new, never used.
Rank No. #18
6 pc DENSO Iridium TT Spark Plugs compatible with Toyota Tacoma 4.0L V6 2005-2015
  • This 6 pack DENSO Iridium TT Spark Plug is compatible with Toyota Tacoma 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005 4.0L V6
  • Genuine DENSO Parts
Rank No. #19
Bosch Automotive (9619) OE Fine Wire Double Iridium Spark Plug - Single
  • 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. Torque Specs - Cast Iron - 11-18 Pounds. ft. Aluminum - 11-15 lb. feet
  • 7 year performance satisfaction
Rank No. #20
8 pc DENSO Iridium TT Spark Plugs compatible with Toyota Tundra 4.6L 5.7L V8 2007-2017
  • This 8 pack DENSO Iridium TT Spark Plug is compatible with Toyota Tundra 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007 4.6L 5.7L V8
  • Genuine DENSO Parts

Last update on 2023-07-29 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Denso Iridium Spark Plugs that you consider buying. Your questions might include the following:

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Potential sources can include buying guides for Denso Iridium Spark Plugs, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Denso Iridium Spark Plugs. Make sure that you are only using trustworthy and credible websites and sources.

Romance University provides an Denso Iridium Spark Plugs buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Denso Iridium Spark Plugs currently available on the market.

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