Best Iridium Spark Plugs in USA

# Preview Product Price
1 6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469 6 New NGK Iridium IX Spark Plugs LFR5AIX-11 # 4469 $37.49
2 NGK # 1465 Laser Iridium Spark Plug IZTR5B11 --- 8 PCSNEW NGK # 1465 Laser Iridium Spark Plug IZTR5B11 --- 8 PCSNEW $57.99
3 NGK Iridium IX Spark Plug, Pack of 4 NGK Iridium IX Spark Plug, Pack of 4 $29.89
4 Denso # 5304 IRIDIUM Power Spark Plugs -- IK20 --- 6 PCSNEW -- Denso # 5304 IRIDIUM Power Spark Plugs -- IK20 --- 6 PCSNEW -- $35.75
5 NGK Spark Plugs (USA),Inc. IZFR6K11 Spark Plugs Izfr6K11 4Pack NGK Spark Plugs (USA),Inc. IZFR6K11 Spark Plugs Izfr6K11 4Pack $43.56
6 Denso Set 6 Iridium TT Spark Plugs Gap .040 For BMW Subaru Toyota Volvo V6 L6 H6 Denso Set 6 Iridium TT Spark Plugs Gap .040 For BMW Subaru Toyota Volvo V6 L6 H6 $56.43
7 NGK Set of 8 Iridium IX Spark Plugs Fine Wire 0.6mm 5k Ohm Taper Cut For V8 NGK Set of 8 Iridium IX Spark Plugs Fine Wire 0.6mm 5k Ohm Taper Cut For V8 $69.78
8 NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack $30.38
9 NGK # 6418 Iridium Spark Plugs BKR6EIX - 4 PCS NEW NGK # 6418 Iridium Spark Plugs BKR6EIX - 4 PCS NEW $27.11
10 ACDelco GM Original Equipment 41-103 Iridium Spark Plug ACDelco GM Original Equipment 41-103 Iridium Spark Plug $7.47
11 NGK # 6509 Iridium Spark Plug LTR6IX-11 - 6 PCSNEW NGK # 6509 Iridium Spark Plug LTR6IX-11 - 6 PCSNEW $43.99
12 Autolite Iridium XP Spark Plug Automotive Replacement XP5325 (Pack of 4) Autolite Iridium XP Spark Plug Automotive Replacement XP5325 (Pack of 4) $26.40
13 NGK 2477 Iridium Spark Plugs ZFR5FIX-11 ---- 6 PCSNEW NGK 2477 Iridium Spark Plugs ZFR5FIX-11 ---- 6 PCSNEW $38.49
14 Autolite Iridium XP Spark Plug Automotive Replacement XP5702 (Pack of 4) Autolite Iridium XP Spark Plug Automotive Replacement XP5702 (Pack of 4) $30.33
15 Autolite Iridium XP Spark Plug Automotive Replacement XP5683 (Pack of 4) Autolite Iridium XP Spark Plug Automotive Replacement XP5683 (Pack of 4) $31.64
16 Set of 4 Iridium Spark Plugs Compatible with Mini Cooper Countryman Paceman Set of 4 Iridium Spark Plugs Compatible with Mini Cooper Countryman Paceman $54.33
17 8 PCS NEW --- DENSO # 5325 IRIDIUM Power Spark Plugs -- IT16 8 PCS NEW --- DENSO # 5325 IRIDIUM Power Spark Plugs -- IT16 $50.36
18 Bosch (9652) FR8DII33X Original Equipment Fine Wire Iridium Spark Plug (6 Pack) Bosch (9652) FR8DII33X Original Equipment Fine Wire Iridium Spark Plug (6 Pack) $47.15
19 Bosch Automotive (9603) OE Fine Wire Double Iridium Spark Plug - Single Bosch Automotive (9603) OE Fine Wire Double Iridium Spark Plug - Single $7.00
20 Denso Set of 6 Iridium Power Spark Plugs Gap 0.035 For V6 Denso Set of 6 Iridium Power Spark Plugs Gap 0.035 For V6 $59.55

Choosing the right Iridium Spark Plugs can be a tough decision. With so many options on the market, it’s hard to know which one is right for you. But fortunately, we’re here to help. In this guide, we’ll break down every detail and feature of the Iridium Spark Plugs and help you find the perfect Iridium Spark Plugs for your needs.

Whether you’re looking for the latest features or the best value, or you want to know what is the best budget option for buying a Iridium Spark Plugs, we’ll make sure you end up with a Iridium Spark Plugs that you’ll love. And you can rely on this review as we have a team of experts. So let’s get started!

Best Iridium Spark Plugs

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

$44.99
$37.49
 in stock
16 new from $29.22
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Extreme performance upgrade via OEM spark plugs and provide a lifetime at 40,000 50,000 miles.
  • Plugs have a fine-wire Iridium center electrode and nickel-alloy terrain electrodes for maximum engine and torque.
  • Designed for fuel-injected and turbo engines.
  • Precision laser electrode construction.

NGK # 1465 Laser Iridium Spark Plug IZTR5B11 --- 8 PCSNEW

$57.99  in stock
15 new from $57.99
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Laser Iridium Premium
  • Designed to operate over a much wider heat range than ordinary plugs
  • Resists carbon buildup and pre-ignition
  • Patented triple gasket sealing process eliminates the possibility of combustion gas leakage

NGK Iridium IX Spark Plug, Pack of 4

$29.89  in stock
11 new from $29.88
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Often specified as original equipment, NGK Laser Iridium spark plugs are the best combination of performance and longevity.
  • Research applications prior to purchase to make sure this part fits your vehicle including engine, trim level & quantity needed
  • Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer
  • NGK is the world's largest supplier of OEM spark plugs
  • This Listing is for 4 Spark Plugs

Denso # 5304 IRIDIUM Power Spark Plugs -- IK20 --- 6 PCSNEW --

$39.31
$35.75
 in stock
9 new from $35.75
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • IRIDIUM POWER
  • DENSO 5304
  • 1order = 6 Pieces

NGK Spark Plugs (USA),Inc. IZFR6K11 Spark Plugs Izfr6K11 4Pack

$43.56  in stock
14 new from $43.00
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Laser welded Iridium center electrode tip ensures high durability and greater spark
  • Platinum disc welded to backside of ground electrode provides long life
  • Longer insulator nose prevents fouling, corrugated ribs on insulator prevents flashover, and the triple gasket seal eliminates combustion gas leakage
  • Faster starts and quicker acceleration

Denso Set 6 Iridium TT Spark Plugs Gap .040 For BMW Subaru Toyota Volvo V6 L6 H6

$56.43  in stock
2 new from $56.43
Amazon.com
as of June 25, 2022 11:53 pm

Features

Part Number4704-Set6

NGK Set of 8 Iridium IX Spark Plugs Fine Wire 0.6mm 5k Ohm Taper Cut For V8

$69.78  in stock
Amazon.com
as of June 25, 2022 11:53 pm

Features

Part NumberTR5IX-Set8

NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack

$32.64
$30.38
 in stock
7 new from $30.28
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • 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

NGK # 6418 Iridium Spark Plugs BKR6EIX - 4 PCS NEW

$28.20  in stock
16 new from $28.20
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.
  • Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer
  • NGK is the world's largest supplier of OEM spark plugs
  • This Listing is for 4 Spark Plugs
  • Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Quantity Needed.

ACDelco GM Original Equipment 41-103 Iridium Spark Plug

$10.72
$7.47
 in stock
21 new from $7.09
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Iridium offers better engine idle stability and smoother performance
  • Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration
  • 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 # 6509 Iridium Spark Plug LTR6IX-11 - 6 PCSNEW

$43.99  in stock
9 new from $43.99
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

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

Autolite Iridium XP Spark Plug Automotive Replacement XP5325 (Pack of 4)

$35.16
$26.40
 in stock
5 new from $25.95
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for over 100,000+ miles 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
  • MAXIMUM PERFORMANCE: The Autolite Iridium XP spark plug provides maximum acceleration as its noble metals resist corrosion better which prevents fouling and in turn allows for quicker acceleration
  • 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 plugs needs
  • CONSTRUCTION: Every Iridium XP plug is manufactured with high alumina multi-rib ceramic insulator to prevent flash-over, a nickel-plated shell, tapered ground electrode for enhanced ignitability, 0.5mm laser welded centerwire, and iridium enhanced platinum alloy pad which limits gap erosion

NGK 2477 Iridium Spark Plugs ZFR5FIX-11 ---- 6 PCSNEW

$38.49  in stock
10 new from $38.49
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • IRIDIUM
  • 1order = 6 Pieces

Autolite Iridium XP Spark Plug Automotive Replacement XP5702 (Pack of 4)

$30.33  in stock
3 new from $27.28
1 used from $23.56
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for over 100,000+ miles 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
  • MAXIMUM PERFORMANCE: The Autolite Iridium XP spark plug provides maximum acceleration as its noble metals resist corrosion better which prevents fouling and in turn allows for quicker acceleration
  • 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 plugs needs
  • CONSTRUCTION: Every Iridium XP plug is manufactured with high alumina multi-rib ceramic insulator to prevent flash-over, a nickel-plated shell, tapered ground electrode for enhanced ignitability, 0.5mm laser welded centerwire, and iridium enhanced platinum alloy pad which limits gap erosion

Autolite Iridium XP Spark Plug Automotive Replacement XP5683 (Pack of 4)

$35.16
$31.64
 in stock
4 new from $27.98
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for over 100,000+ miles 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
  • MAXIMUM PERFORMANCE: The Autolite Iridium XP spark plug provides maximum acceleration as its noble metals resist corrosion better which prevents fouling and in turn allows for quicker acceleration
  • 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 plugs needs
  • CONSTRUCTION: Every Iridium XP plug is manufactured with high alumina multi-rib ceramic insulator to prevent flash-over, a nickel-plated shell, tapered ground electrode for enhanced ignitability, 0.5mm laser welded centerwire, and iridium enhanced platinum alloy pad which limits gap erosion

Set of 4 Iridium Spark Plugs Compatible with Mini Cooper Countryman Paceman

$54.33  in stock
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Fitment Notes: None
  • Direct fit replacement
  • Installs the same as factory unit
  • Same dimensions as Original Part

8 PCS NEW --- DENSO # 5325 IRIDIUM Power Spark Plugs -- IT16

$50.36  in stock
6 new from $49.61
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • FREE SHIPPING to anywhere IN USA and territories For This Item
  • IRIDIUM POWER
  • DENSO 5325
  • 1order = 8 Pieces

Bosch (9652) FR8DII33X Original Equipment Fine Wire Iridium Spark Plug (6 Pack)

$47.15  in stock
4 new from $46.40
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • Sold in packs of 6

Bosch Automotive (9603) OE Fine Wire Double Iridium Spark Plug - Single

$7.00  in stock
7 new from $7.00
Free shipping
Amazon.com
as of June 25, 2022 11:53 pm

Features

  • 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.

Denso Set of 6 Iridium Power Spark Plugs Gap 0.035 For V6

$59.55  in stock
2 new from $59.55
Amazon.com
as of June 25, 2022 11:53 pm

Features

Part Number5356-Set6

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