Pro & Con Arguments - Best Iridium Spark Plugs – Buyer’s Guide 2018

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Best Iridium Spark Plugs
Our team have been testing many products from marketplace and finally have found the best iridium spark plugs on the market. You can find the whole list of them below.

Finding the iridium spark plugs that will suit you the most is not an easy thing to do. Nowadays, there are hundreds of manufacturers that offer many iridium spark plugs for any taste. We decided to help you choose the right iridium spark plugs for you and created this rating list with the best options.

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.

 

 
Pro
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
Con
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.

 

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

Are new iridium spark plugssupposed to be expensive?

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.

 

 
 

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.

 

 
Pro
Latest evolution in high-performance plug electrode material
Improved cold-starting
Acdelco is an original equipment
Iridium tip
Spark gap remains virtually unchanged during
Con
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.

 

 
Pro
Increased conductivity
Increases fuel efficiency
High quality material
Con
May be expensive for some people.
 

How safe is it to purchase a iridium spark plugs online?

Our site is one of the safest place to buy iridium spark plugs. It has detailed descriptions for all available iridium spark plugsand offers a money back guarantee if you get a wrong or broken item. There are no reasons to worry!

 

 
№ 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.

 

 
Pro
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
Con
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.

 

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

How did you create this rating list with the best iridium spark plugs?

We compared over a hundred of iridium spark plugsfrom various manufacturers. To make our buying guide as honest as it is possible, we took into consideration all the important characteristics, such as price, weight, material, assembly quality, and many more. If you want to find the best iridium spark plugs for the least amount of money, our TOP list will be very useful for you.

What warranty period is considered optimal for iridium spark plugs?

We recommend all our readers to buy iridium spark plugswith at least the two-year long warranty period. This is the optimal term for an average iridium spark plugs. Instead of overpaying for a lifetime warranty, save the money to buy a new iridium spark plugs later.

How to get a refund for a iridium spark plugs?

Most of the time seller will return your money without any trouble. If you received a malfunctioning iridium spark plugs, you will easily get a refund or a replacement. Nonetheless, if you value your time, we highly recommend you to thoroughly check the item’s description before making a purchase.

What exactly I should pay my special attention to when choosing a iridium spark plugs?

As you might have guessed, the weight of a iridium spark plugs is one of the main factor to consider. Another important aspects is its material. If the iridium spark plugs is assembled well, it will serve you for many years.

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

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ron@damremo.com
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