20 Best Autolite Iridium Spark Plug Reviews [2024]

Are you looking for the best autolite iridium spark plug reviews? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling autolite iridium spark plug reviews.

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# Preview Product
1 Autolite XP5863-4PK Iridium XP Spark Plug, 4 Pack Autolite XP5863-4PK Iridium XP Spark Plug, 4 Pack
2 Autolite Iridium XP Automotive Replacement Spark Plugs, XP5363 (4 Pack) Autolite Iridium XP Automotive Replacement Spark Plugs, XP5363 (4 Pack)
3 Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack) Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (4 Pack)
4 Autolite Iridium XP Automotive Replacement Spark Plugs, XP5702 (4 Pack) Autolite Iridium XP Automotive Replacement Spark Plugs, XP5702 (4 Pack)
5 Autolite XP3924-4PK Iridium XP Spark Plug, 4 Pack Autolite XP3924-4PK Iridium XP Spark Plug, 4 Pack
6 Autolite Iridium XP Automotive Replacement Spark Plugs, XP6203 (4 Pack) Autolite Iridium XP Automotive Replacement Spark Plugs, XP6203 (4 Pack)
7 Autolite Iridium XP Automotive Replacement Spark Plugs, XP5263 (4 Pack) Autolite Iridium XP Automotive Replacement Spark Plugs, XP5263 (4 Pack)
8 NGK 3951 Pack of 8 Spark Plugs (TR55) NGK 3951 Pack of 8 Spark Plugs (TR55)
9 Autolite APP5325-4PK Double Platinum Spark Plug, Pack of 4 Autolite APP5325-4PK Double Platinum Spark Plug, Pack of 4
10 Pack of 8 Genuine Motorcraft Spark Plug SP-493 AGSF32PM Pack of 8 Genuine Motorcraft Spark Plug SP-493 AGSF32PM
11 Autolite XP5701-4PK Iridium XP Spark Plug, Pack of 4 Autolite XP5701-4PK Iridium XP Spark Plug, Pack of 4
12 Autolite APP5224 Double Platinum Automotive Replacement Spark Plugs (4 Pack) Autolite APP5224 Double Platinum Automotive Replacement Spark Plugs (4 Pack)
13 Iridium Spark Plugs SC20HR11 90919-01253 3444 Compatible with Toyota Lexus Scion Pack of 4 Iridium Spark Plugs SC20HR11 90919-01253 3444 Compatible with Toyota Lexus Scion Pack of 4
14 Champion Champion Iridium 9407 Spark Plug (Carton of 1) Champion Champion Iridium 9407 Spark Plug (Carton of 1)
15 Autolite 3924 Spark Plug Copper Core (4 Pack) Autolite 3924 Spark Plug Copper Core (4 Pack)
16 Autolite Iridium XP Automotive Replacement Spark Plugs, XP5325 (Pack of 4) Autolite Iridium XP Automotive Replacement Spark Plugs, XP5325 (Pack of 4)
17 Vplus 8PCS Iridium Spark Plug Replaces# SP546, PZT14F, PZT1F, PZT2F, PZT2FF4, SP421, SP462, SP507 Vplus 8PCS Iridium Spark Plug Replaces# SP546, PZT14F, PZT1F, PZT2F, PZT2FF4, SP421, SP462, SP507
18 Fuzbaxy 8PCS Spark Plug Wire Boots 6 inches 2500° Heat Shield Protector Sleeve with 16pcs Stainless... Fuzbaxy 8PCS Spark Plug Wire Boots 6 inches 2500° Heat Shield Protector Sleeve with 16pcs...
19 Bosch Automotive (9616) OE Fine Wire Double Iridium Spark Plug - Single Bosch Automotive (9616) OE Fine Wire Double Iridium Spark Plug - Single
20 Autolite Iridium XP Automotive Replacement Spark Plugs, XP5683 (4 Pack) Autolite Iridium XP Automotive Replacement Spark Plugs, XP5683 (4 Pack)
Bestseller No. 1
Autolite XP5863-4PK Iridium XP Spark Plug, 4 Pack
  • Item Package Dimension:2.794 cm L X9.144 cm W X10.668 cm H
  • Item Package Weight:0.222 Kilograms
  • Product Type:Spark Plug
  • Country Of Origin: Mexico
Bestseller No. 2
Autolite Iridium XP Automotive Replacement Spark Plugs, XP5363 (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...
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and...
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems...
SaleBestseller No. 3
Autolite Iridium XP Automotive Replacement Spark Plugs, XP3923 (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...
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and...
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems...
SaleBestseller No. 4
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...
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and...
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems...
SaleBestseller No. 5
Autolite XP3924-4PK Iridium XP Spark Plug, 4 Pack
  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Attached motor seat gasket and terminal nut
Bestseller No. 6
Autolite Iridium XP Automotive Replacement Spark Plugs, XP6203 (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...
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and...
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems...
Bestseller No. 7
Autolite Iridium XP Automotive Replacement Spark Plugs, XP5263 (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...
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and...
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems...
SaleBestseller No. 8
NGK 3951 Pack of 8 Spark Plugs (TR55)
  • Includes (8) Spark Plug.
  • Genuine NGK Replacement Part.
  • New, Bulk Packed.
  • Consult owners manual for proper part number identification and proper installation.
  • Please refer to list for compatibility.
Bestseller No. 9
Autolite APP5325-4PK Double Platinum Spark Plug, Pack of 4
  • Full platinum tips ensure virtually no gap erosion
  • Works to optimize engine performance for a longer life and improved fuel economy
  • Necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration
  • High nickel alloy side electrode maintains precise gap
  • Full copper core electrode provides better performance in all conditions
SaleBestseller No. 10
Pack of 8 Genuine Motorcraft Spark Plug SP-493 AGSF32PM
  • Brand New in the Box
  • Platinum Spark Plug
  • Designed to operate over a much wider heat range than ordinary plugs
  • Resists carbon buildup and pre-ignition
Bestseller No. 11
Autolite XP5701-4PK Iridium XP Spark Plug, Pack of 4
  • Iridium-enhanced platinum alloy 0.6mm fine wire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum side wire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Fit type: Vehicle Specific
Bestseller No. 12
Autolite APP5224 Double Platinum Automotive Replacement Spark Plugs (4 Pack)
  • MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts...
  • IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode...
  • CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion...
  • high nickel alloy side electrode maintains precise gap
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
Bestseller No. 13
Iridium Spark Plugs SC20HR11 90919-01253 3444 Compatible with Toyota Lexus Scion Pack of 4
  • High performance Not Original OE Number: 90919-01253 SC20HR11 3444 Spark Plugs To ensure 100% fit, please check your part number before buy
  • Precious center electrode for durability
  • Ceramic frame provide excellent resistance to high temperature
  • Any question please feel free to contact us
  • 1-year warranty with proof of purchase
Bestseller No. 14
Champion Champion Iridium 9407 Spark Plug (Carton of 1)
  • Champion Iridium - Maximum Performance. Premium Spark Plug
  • Iridium center electrode delivers maximum life
  • Fine-wire center electrode and V-trimmed for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Maintains stable operating temperature under all engine loads
SaleBestseller No. 16
Autolite Iridium XP Automotive Replacement Spark Plugs, XP5325 (Pack of 4)
  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine...
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and...
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems...
SaleBestseller No. 17
Vplus 8PCS Iridium Spark Plug Replaces# SP546, PZT14F, PZT1F, PZT2F, PZT2FF4, SP421, SP462, SP507
  • Reference number: SP546, PZT14F, PZT1F, PZT2F, PZT2FF4, SP421, SP462, SP507, SP515 spark plugs.
  • Iridium spark plugs/One order = 8 Pieces
  • Replacement racing spark plug used by many professional car drivers
  • Specifically designed with colder heat ranges than the factory plug to enable performance modifications and handle intense conditions
  • Please input your make, model and trim level into the Amazon Garage and check the part number before purchasing to ensure fitment.
SaleBestseller No. 18
Fuzbaxy 8PCS Spark Plug Wire Boots 6 inches 2500° Heat Shield Protector Sleeve with 16pcs Stainless...
  • Spark Plug Wire Boot Length: 6 inch,Spark Plug Wire Boot works with most 90 Degree ,45 Degree and straight spark plug boots.
  • Package Included :8pcs Spark Plug Wire Boot and 16pcs Stainless Steel Wire Ties.
  • Universal fit most straight or angled boots.GM,Chevy,GMC,Cadillac,Buick,Ford,Dodge.
  • Double layer construction for added durability.Made of Titanium that Can hold 1600~2500 degree F.
  • Protect spark plug boots and wires from extreme temperatures generated by vehicle exhaust headers and manifolds.If received it missing some parts,pls...
Bestseller No. 19
Bosch Automotive (9616) 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
SaleBestseller No. 20
Autolite Iridium XP Automotive Replacement Spark Plugs, XP5683 (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...
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency....
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and...
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement...
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems...

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FAQ:

Q: What are the sign bad iridium spark plugs?

A: – 6 Signs of a bad spark plug 1. Engine misfires. 2. Poor fuel economy. 3. … – What will happen if I keep driving with a bad spark plug? – Which spark plug to choose? – How to maintain a spark plug in good condition? – How much does a spark plug replacement cost? – What is the perfect spark plug gap? – Where are spark plugs located? – How to replace spark plugs? – Conclusion

Q: Which is better an iridium or platinum spark plug?

A: It lasts longer than the regular copper plug. It prevents and reduces the build-up of debris,especially in the spark plug hole. Platinum spark plugs cost is relatively cheaper than iridium.

Q: Which spark plug is best?

A: – Best buy: Seagate Expansion Card 1TB – Best Xbox One buy: Seagate Game Drive – Honourable mention: SanDisk Extreme Portable SSD 1TB

Q: Which spark plugs would be best?

A: NGK Iridium IX Spark Plugs. These plugs have extremely high durability. … Denso Spark Plug. This spark plug is better at providing super acceleration. … Autolite Spark Plug. … ACDelco Spark Plug. … Bosch Automotive Spark Plug. … Genuine OEM Spark Plugs. … FARM Autolite Spark Plug. …