Denso Iridium Spark Plugs Review

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Have your spark plugs begun to wane out? Are you looking for new ones? Then you have come to the right place. Denso iridium spark plugs review will help you to find out if you have made the right decision. 

Spark plugs are necessary to light up gasoline in the combustion chamber which makes the vehicle run. And no other plugs do their job better than iridium spark plugs do. 

Fortunately, the Denso iridium plug’s technology promotes spark energy concentration and explosion, which improves acceleration and performance. They are well manufactured and durable as well.

Before making any purchase, you should take into consideration that it is not only about the expense but also what is best for your machine. To this Amazon suggests, that the Denso iridium spark plug is more than what you pay. 

What Is Denso Iridium Spark Plug?

Denso Iridium Spark Plugs Review
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The Denso iridium spark plug is a revolutionary new spark plug that has been designed to be the perfect replacement for your vehicle’s OEM plugs. With a specially designed electrode that generates a more powerful and consistent spark, these plugs can provide better fuel efficiency, make engines run smoother, and last longer.

They have been around for more than 20 years and are still going strong! In fact, these plugs are so good that they’re used in Formula One race cars as well as the Indy 500 race car champion. If you want to get your engine running at optimum efficiency then this is the spark plug for you.

Denso Iridium Spark Plug is a very popular and high-quality spark plug. It’s made of iridium, which means it has a long lifespan and can withstand tough conditions. The plugs also have a triple ground electrode, which provides the best performance possible for your vehicle. 

Denso Iridium Spark Plugs are made from high-quality materials including ceramic insulator material which offers excellent corrosion resistance as well as superior anti-seizing properties. It also features an ultra-low profile design which allows you to use them in tight engine compartments or under certain hoods where clearance would otherwise be an issue. This means that you’ll never have to worry about changing out your old plugs again.

Features Of Denso Iridium spark plugs

  • Finest Insulator: Denso has a well-prepared insulator that centers the shaft and the electrode from the housing, preventing the escape of high voltage from the electrodes.
  • Glass Seal:  A special mixture of glass powder and copper powder is charged in the installation section for the insulator center shaft and center electrode. Denso uses the glass seal method. The sealing for both is good and the thermal ratio of expansion is appropriate, so even under harsh conditions gaps do not occur and good airtightness can be secured.
  • Tapered cut ground electrode: The ground electrode has a shape in which the electrode tip is cut to a finely tapered shape. This reduces the quenching effect, so it improves ignition performance.
  • Best center electrode: Denso used an iridium alloy tip with a diameter of 0.4 mm laser welded to the tip of the center electrode to make the center electrode. Iridium is a precious metal and has extraordinarily superior properties for a spark plug electrode, for example, high temperature high strength, and low resistance.  These qualities are best used by no other than Denso. 
  • U-groove ground electrode: Denso obtained patents for spark plug U-grooves from 1975 to 1992. U-groove is a nickel-chrome material used for the ground electrode. Various measures have been taken with the shape to improve ignition performance. The benefits of this electrode are: (1) The surface contacted by the air-fuel mixture is large, (2) There are many edge sections, and sparks occur easily, and (3) The flame core widens easily.
  • Gapping Tool: Every spark plug has its gap. The distance between its two electrodes, center and ground. This gap helps your automobiles to run smoothly. Other manufacturers do not offer to adjust, they give the manual of necessary gaps. You need to adjust it as accurately as you can. Luckily, Denso plugs will come pre-gapped from the factory, so you do not have to worry about it much. 
  • Highly Reliable Resistor: Denso iridium spark plugs include an embedded, highly reliable, monolithic resistor to eliminate electromagnetic noise interference from all kinds of electronic devices. In order to improve oxidation resistance at high temperatures, Denso developed a unique new iridium alloy containing rhodium. 
  • Well-manufactured: Denso’s purified alumina powder insulator provides exceptional thermal conductivity. Five rib insulators prevent flashover. Copper-glass seal bonds the center electrode and insulator for a gas-tight seal.

Technical Specifications

  • 14mm Thread, 
  • 360-degree laser welding,
  • 19mm (3/4″) Reach, 
  • 5/8″ (16mm) Hex Size, 
  • Gasket Seat, 
  • Solid Terminal, 
  • 0.7mm Fine Wire Iridium-Tipped Center Electrode, 
  • Platinum Tipped Ground Electrode, and 
  • 0.044″ (1.1mm) Gap. 

Mechanical Compatibilities

Denso Iridium spark plugs are fit for all types of automobiles, motorbikes, and machines that require sparks. Almost all Japanese cars use Denso iridium plugs, you can find them on German Cars as well. The plugs come in a variety of options, you can choose according to your car’s preference.

The Strengths

Your journey with Denso iridium spark plugs will be mind-blowing. Because of its:

  • Excellence performance: Denso iridium plugs can perform under extreme driving or racing conditions. It also enhances your engine’s performance.
  • Durability: Nothing can beat its exceptional lifespan. These plugs will accompany you for 80,000-100,000 miles.
  • Fuel friendliness: Denso iridium spark plugs can immediately improve your gas mileage on the highway. This benefit occurs because you have an improved ignition profile that allows your fuel to burn more efficiently.
  • Energy savings: Denso uses a unique design for iridium spark plugs that includes a small electrode. Saving on energy during the start-up phase or while accelerating ensures that you have a reserve in place to manage the driving experience better.

The Weaknesses

Before purchasing it is always wise to consider the potential weaknesses your desired product might have. 

  • It is expensive: Iridium is a precious element, and manufacturing plugs with that material costs much. So, buying them would definitely be expensive. We promise you this is its one and only big weakness.
  • Poor performance in unfit automotive: After replacing Denso iridium spark plugs, if your vehicle does not perform as you heard it would, then you check the fitness of your vehicle. Because performing well depends upon various factors. Fitness is one of them.
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Why Purchase Denso Iridium Spark Plugs?

Denso spark plugs utilize 360-degree laser welding with iridium. This technology can ensure a quality spark plug that will offer enhanced acceleration and minimal misfires. 

The Denso spark plugs also offer both low voltage requirements and high ignitability. The Denso spark plug can also keep heat loss to a minimum while its design offers a smaller electrode diameter, for enhanced ignitability. 

You will pay more for a Denso spark plug, but its performance will make up for the price. That is why you should definitely buy them.

FAQ Of Denso Iridium Spark Plugs

How good are Denso Iridium spark plugs?

Denso plugs are a popular choice among mechanics. The steel used in their construction has excellent hardness and they produce sparks with greater frequency, which can lead to shorter plug life spans compared with other brands on the market today but still provide strong performance overall.

How long do Denso Iridium plugs last?

Denso Iridium Power series has an advanced iridium center electrode with a traditional nickel ground. The improved construction will allow you to get 60,000 – 80K out of your motor before it needs replacing.

What is the lifespan of iridium spark plugs?

It varies depending on gas quality and makes, but 3-4 thousand hours is a good average.

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Conclusion

Besides all the logical and technical arguments we have made so far, we would also want you to know that- Denso manufacturers want you to have the best product for your machine because they strictly follow their corporate philosophy. 

Their notion is based on, “Contributing to a better world by creating value together with a vision for the future.” Now you know why they are so good. It is worth the price. 

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