Top 9 Spark Plugs Iridium 4 Pack – Automotive Replacement Spark Plugs

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1. NGK

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Pack of 4, NGK 5464 BKR5EIX-11 Iridium IX Spark Plug

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NGK #ad - The 06 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect.

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling. 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; part number of spark plug inside the box: BKR5EIX-11. Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage.
BrandNGK #ad
ManufacturerNGK #ad
Height0.96 Inches
Length3.62 Inches
Weight0.1 Pounds
Width5.76 Inches
Part Number5464
Model5464-4PK
WarrantyLimited Warranty

2. Autolite

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Pack of 4, Autolite XP3923-4PK Iridium XP Spark Plug

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Autolite #ad - V-trimmed ground electrode for improved ignitability. Platinum protected ground wire for maximum efficiency in all ignition types. Limited lifetime warranty. Better overall ignitability and optimum performance. Iridium-enhanced 06mm finewire design for optimal durability and performance.
BrandAutolite #ad
ManufacturerFRAM #ad
Part NumberXP3923
ModelXP3923-4PK
WarrantyLifetime Limited Warranty

3. NGK

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NGK LKAR6AIX-11 Iridium IX Spark Plug 91187 Iridium Ix, 4 Pack

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NGK #ad - Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.

The 06 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect. Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines. Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage. Trivalent metal Plating provides superior anti-corrosion and anti-seizing properties.
BrandNGK #ad
ManufacturerNGK #ad
Part NumberLKAR6AIX-11
ModelLKAR6AIX-11

4. NGK

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4 PCSNEW, NGK 2477 Iridium Spark Plugs ZFR5FIX-11

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NGK #ad - 1 order = 4 pc. Zfr5fix-11. Iridium Spark Plugs. Free shipping to anywhere in usA and territories For This Item. Ngk 2477.
BrandNGK #ad
ManufacturerNGK #ad
Part Number2477
ModelZFR5FIX-11

5. NGK

#ad

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

#ad
NGK #ad - Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines.

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling. Trivalent metal Plating provides superior anti-corrosion and anti-seizing properties. Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage. The 06 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect.
BrandNGK #ad
ManufacturerNGK #ad
Weight0.01 Pounds
Part NumberLKAR7BIX-11S
ModelLKAR7BIX-11S

6. Autolite

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Pack of 4, Fram Autolite XP5325-4PK Iridium XP Spark Plug

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Autolite #ad - Iridium-enhanced 06mm finewire design for optimal durability and performance. V-trimmed ground electrode for improved ignitability. Platinum protected ground wire for maximum efficiency in all ignition types. Better overall ignitability and optimum performance. Limited lifetime warranty.
BrandAutolite #ad
ManufacturerFRAM #ad
Part NumberXP5325
ModelXP5325-4PK
WarrantyLifetime Limited Warranty

7. NGK

#ad

Pack of 4, NGK 6441 ZFR6FIX-11 Iridium IX Spark Plug

#ad
NGK #ad - Longer insulator nose avoid fouling, the corrugated ribs on insulator avoid 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 corrosion and seizing properties; Part number of spark plug inside the box: ZFR6FIX-11. Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior fouling. The 06 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect.
BrandNGK #ad
ManufacturerNGK #ad
Height0.98 Inches
Length0.89 Inches
Weight0 Pounds
Width3.43 Inches
Part Number6441
Model6441-4PK

8. Autolite

#ad

Pack of 4, Autolite XP5702-4PK Iridium XP Spark Plug

#ad
Autolite #ad - Better overall ignitability and optimum performance. Iridium-enhanced 06mm finewire design for optimal durability and performance. Limited lifetime warranty. Platinum protected ground wire for maximum efficiency in all ignition types. V-trimmed ground electrode for improved ignitability.
BrandAutolite #ad
ManufacturerFRAM #ad
Part NumberXP5702
ModelXP5702-4PK
WarrantyLifetime Limited Warranty

9. Autolite

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Autolite XP3924-4PK Iridium XP Spark Plug, 4 Pack

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Autolite #ad - Attached motor seat gasket and terminal nut. Iridium-enhanced platinum alloy 06mm fine wire center electrode for improved ignitibility performance. Fit type: Vehicle Specific. Patented v-trimmed platinum side wire technology resists wear. Designed for better overall durability with virtually no gap erosion for longer plug life. Oe equivalent design is engineered for every engine to ensure the right plug for your vehicle.
BrandAutolite #ad
ManufacturerFRAM #ad
Part NumberXP3924
ModelXP3924-4PK
WarrantyLifetime Limited Warranty