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The Best Bosch Iridium Spark Plug of 2023 – Reviewed and Top Rated

2,990 Reviews Scanned

SaleRank No. #1
Bosch ZQR8SI302 OE Fine Wire Iridium Spark Plug - Single
  • Bosch original equipment design, materials and processes represent advanced OE technology that delivers both high performance and long life
  • The fine wire design of the center electrode improves ignitability and performance in your engine while the Iridium center electrode and Iridium-Platinum tipped ground electrode provides an extended service life
  • Ribbed insulator design seals tightly against the wire boot preventing misfires due to flash-over
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize for installation
  • Bosch Iridium spark plugs are pre-gapped at the factory and do not require a gap adjustment prior to installation
Rank No. #2
BOSCH 9602 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° 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
Rank No. #3
Bosch Automotive (9609) OE Fine Wire Double Iridium Spark Plug - Single
  • Double Iridium electrodes - iridium firing pin and iridium ground electrode inlay - offer higher performance
  • OE-matched spark position for compatibility with Gasoline Direct Injection (GDI) technology
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize for installation
  • Bosch Double Iridium spark plugs are pre-gapped at the factory and do not require a gap adjustment prior to installation
  • Meets or exceeds manufacturer design requirements for modern gasoline engines to provide OE fit, form and function, while delivering 4X longer service life when compared to standard copper spark plugs
Rank No. #4
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
Rank No. #5
Bosch 9652 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
  • 7 year performance satisfaction guarantee
  • Original equipment, pre-gapped replacement delivering optimum fit, form and function
SaleRank No. #6
BOSCH Automotive 9614 OE Fine Wire Double Iridium Spark Plug - Pack of 4
  • 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
Rank No. #7
BOSCH 9603 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
  • 360° continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability
  • International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
Rank No. #8
BOSCH 9617 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° continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability
  • International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
SaleRank No. #10
Rank No. #11
BOSCH 9613 OE Fine Wire Double Iridium Spark Plug - Single
  • Fit Type: Universal Fit
  • 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
SaleRank No. #12
Bosch 9673 OE Fine Wire Double Iridium Spark Plug - Pack of 4
  • 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
Rank No. #13
Bosch 9601 OE Fine Wire Double Iridium Spark Plug - Single
  • Double Iridium electrodes - iridium firing pin and iridium ground electrode inlay - offer higher performance
  • OE-matched spark position for compatibility with Gasoline Direct Injection (GDI) technology
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize for installation
  • Bosch Double Iridium spark plugs are pre-gapped at the factory and do not require a gap adjustment prior to installation
  • Meets or exceeds manufacturer design requirements for modern gasoline engines to provide OE fit, form and function, while delivering 4X longer service life when compared to standard copper spark plugs
Rank No. #14
Bosch (9609) FR8MII33X Original Equipment Fine Wire Iridium Spark Plug (4 Pack)
  • Item Package Dimension: 4.8818897588L x 4.1732283422W x 0.8267716527H inches
  • Item Package Weight - 0.49383546688 Pounds
  • Item Package Quantity - 4
  • Product Type - SPARK PLUG
Rank No. #16
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. #17
Bosch Automotive (9607) 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
  • 7 year performance satisfaction
SaleRank No. #18
BOSCH 96337 OE Fine Wire Double Iridium Spark Plug - Pack of 4
  • 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
SaleRank No. #19
Bosch 9747 OE Fine Wire Iridium Spark Plug - Single
  • Specially engineered Yttrium enhanced ground electrode provides 2X longer service life compared to standard Copper plugs
  • Fine wire Platinum firing pin for better ignitability
  • Unique 360 continuous laser weld fuses corrosion resistant Platinum firing pin to base
  • Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize for installation
  • Bosch Platinum spark plugs are pre-gapped at the factory and do not require a gap adjustment prior to installation
SaleRank No. #20
Autolite Iridium XP Automotive Replacement Spark Plugs, XP5702 (4 Pack)
  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability

Last update on 2023-08-02 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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