Things You Need to Know about Best Iridium Spark Plugs 2018 Ultimate Buying Guide and Reviews

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Best Iridium Spark Plugs
The TOP list of the best iridium spark plugs was made with careful attention to details. Our team tried to cover every important aspect of each model, including its price, material, manufacturer, and many more nuances. Nevertheless, we strongly advise you to read reviews from other users before choosing the best iridium spark plugs for you.

Our team is proudly presents you the best iridium spark plugs on the marketplace. We found amazing products for affordable prices! You can find our list of the TOP products on this page below.

6 Best Iridium Spark Plugs of 2018

Rating Image Name and Features Details
5.0
Ngk 7397 Tr5ix Iridium Ix Spark Plug 1. Ngk 7397 Tr5ix Iridium Ix Spark Plug (Editor’s Choice)
The 0.6mm laser welded fine iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect.
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4.5
Ngk 5464 Bkr5eix-11 Iridium Ix Spark Plug 2. Ngk 5464 Bkr5eix-11 Iridium Ix Spark Plug
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.
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4.3
Acdelco 41-110 Oem Gm 12621258 Professional Iridium Spark Plug 3. Acdelco 41-110 Oem Gm 12621258 Professional Iridium Spark Plug (Best Versatility Features)
Improved cold-starting and acceleration characteristics.
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4.3
Hivehicle Iridium Spark Plug 4. Hivehicle Iridium Spark Plug
Updated design reduce the risk of breaking off during working.
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4.0
6 New Ngk Iridium Ix Spark Plugs 5. 6 New Ngk Iridium Ix Spark Plugs
Plugs feature a fine-wire iridium center electrode and nickel-alloy ground electrodes for maximum engine horsepower and torque.
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3.5
6 Pcs Denso Iridium Long Life Spark Plugs 6. 6 Pcs Denso Iridium Long Life Spark Plugs
Uses the same high performance laser welding process as the high end iridium power spark plug.
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Design
5/5
 

Versatility
5/5
 

Performance
5/5
 

Price
5/5
 
Overall Brand Model Dimensions Weight Details
5.0
NGK 7397-4PK 4.1 x 3.5 x 1 inches 2.4 ounces
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Trivalent metal plating – superior anti-corrosion and anti-seizing properties. 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. Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage. The 0.6mm laser welded fine iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect.

 

 
The good
Longer insulator nose prevents fouling
Designed specifically
Trivalent metal plating
The 0.6mm laser welded fine iridium tip ensures high durability
Iridium alloy has extremely high melting point
The bad
Not a single flaw!
 

 

 
 

Design
5/5
 

Versatility
5/5
 

Performance
4/5
 

Price
4/5
 
Overall Brand Model Dimensions Weight Details
4.5
NGK 5464-4PK 3.4 x 0.8 x 0.7 inches 6.4 ounces
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Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage. 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. 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; part number of spark plug inside the box: bkr5eix-11.

Designed specifically for the performance enthusiast, iridium ix offers extreme ignitability, improved throttle response and superior anti-fouling.

 

 
The good
Iridium alloy has extremely high melting point
Trivalent metal plating provides superior anti-corrosion
Designed specifically
Longer insulator nose prevents fouling
The bad
It weighs a ton!
It is too expensive for what you get.
 

What exactly did you take into consideration while making the list of the best iridium spark plugs?

We considered so many factors that it is nearly impossible to tell you about all of them. Believe us, we did not forget about anything. Price, material, user score, and other characteristics of iridium spark plugswere used to create this TOP list. We tried our best to help you choose the best iridium spark plugs!

 

 
 

Design
5/5
 

Versatility
4/5
 

Performance
3/5
 

Price
5/5
 
Overall Brand Model Dimensions Weight Details
4.3
ACDelco 6 x 2 x 8 inches 12.8 ounces
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Improved cold-starting and acceleration characteristics. Reduced ignition system voltage demands saves wear and tear. Latest evolution in high-performance plug electrode material and new-vehicle applications using iridium plugs continues to increase. Acdelco is an original equipment (oe) supplier and has the experience engineering and manufacturing components that achieve the highest quality standards required by vehicle manufacturers. Iridium tip for maximum resistance to spark erosion and corrosive combustion chamber environment. Spark gap remains virtually unchanged during the life of the plug for increased fuel efficiency and 12-month/12.000-mile limited warranty.

 

 
The good
Latest evolution in high-performance plug electrode material
Improved cold-starting
Acdelco is an original equipment
Iridium tip
Spark gap remains virtually unchanged during
The bad
It quickly becomes rusty.
 

 

 
№ 4. Hivehicle Iridium Spark Plug 41-110 Pack of 8, for Chevy Gmc Cadillac Buick
 

Design
5/5
 

Versatility
4/5
 

Performance
5/5
 

Price
3/5
 
Overall Brand Model Dimensions Weight Details
4.3
HiVehicle 13.6 ounces
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High quality material: purified alumina powder insulator from germany almatis(model: hva fg q0 and full-automatic isopressing; iron shell(model: 20 08 al) and automatic welding/rolling bending; central electrode(99% nickel clad copper ) and 360 degree laser welding iridium & platinum. Reduce the risk: updated design reduce the risk of breaking off during working. Increases fuel efficiency: g-power platinum alloy spark plugs offer superior performance with improved fuel efficiency, lower emissions, and quicker starts. Increased conductivity: increased conductivity and heat control for good overall. Stability: 0.6mm laser welded fine platinum tip reduces required voltage ensuring high durability and a consistently stable spark.

Durability: trivalent metal plating offers superior anti corrosion and anti seizing properties while the triple gasket seal eliminates combustion gas leakage.

 

 
The good
Increased conductivity
Increases fuel efficiency
High quality material
The bad
May be expensive for some people.
 

What factors did you consider while making the TOP list of the best iridium spark plugs?

During the creation of this buying guide, we had to look through hundreds of iridium spark plugs. Our team compared many products from various brands in order to find the most optimal model with the best price to quality ratio. The goal was to determine iridium spark plugsthat offer the most value for their money, and we think that we have achieved it.

 

 
№ 5. 6 New Ngk Iridium Ix Spark Plugs Bkr5eix-11 5464
 

Design
5/5
 

Versatility
3/5
 

Performance
4/5
 

Price
4/5
 
Overall Brand Model Dimensions Weight Details
4.0
NGK 5464 10.4 ounces
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Trivalent metal plating has superior anti-corrosion and anti-seizing properties. Designed for fuel-injected and turbocharged engines. Plugs feature a fine-wire iridium center electrode and nickel-alloy ground electrodes for maximum engine horsepower and torque. Precision laser-welded electrode construction. Extreme performance upgrade over oem spark plugs and provide a 40.000 to 50.000 mile service life.

 

 
The good
Plugs feature a fine-wire iridium center electrode
Extreme performance upgrade over oem spark plugs
Trivalent metal plating has superior anti-corrosion
Precision laser-welded electrode construction
The bad
The material is not flexible, so it is easy to break.
 

 

 
№ 6. 6 Pcs Denso Iridium Long Life Spark Plugs for 2008-2013 Infiniti G37 3.7l V6
 

Design
5/5
 

Versatility
5/5
 

Performance
2/5
 

Price
2/5
 
Overall Brand Model Dimensions Weight Details
3.5
Sixity Auto 11.5 ounces
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Improve engine horsepower and fuel economy over standard plugs. The same plugs factory-installed on luxury vehicles by automakers such as gm, toyota, honda and mitsubishi. Uses the same high performance laser welding process as the high end iridium power spark plug. Endures extreme temperatures greater than 4.000f associated with high-performance ignition and special fuel systems. Iridium is the most corrosion-resistant metal used in plugs today.

 

 
The good
Endures extreme temperatures greater than 4.000f associated
Improve engine horsepower
The bad
It is too heavy for regular use.
It works well, but the price matches the quality — it is very high.
 

How expensive should a good iridium spark plugs be?

If you want to buy a reliable iridium spark plugs, then you should remember that it costs a decent amount of money. Of course, there are many cheap models, but they do not last for too long. We recommend you to buy iridium spark plugsfrom our rating list since they offer the best price to quality ratio.

Should I get a iridium spark plugs with a lifetime warranty?

Companies that make iridium spark plugsoffer all kinds of warranties for any taste. Usually, cheap models have only a 6-month warranty or do not have it at all. Average users recommend choosing a iridium spark plugs with a two-year warranty, but we believe that the five-year warranty is much better and safer. At the same time, our team would not recommend you to buy models with a lifetime warranty since the vast majority of them is significantly overpriced.

What is the average cost for a good iridium spark plugs?

The price of a iridium spark plugs should never be the determining factor. Even if you are able to afford the most expensive model, you might do not actually need it. iridium spark plugsin the average price range can cover all your needs and save you a few bucks at the same time.

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My name is Ron Hughes and I am a Electronic Solderer. I graduated from Clark University - Worcester, Massachusetts

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