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Best Spark Plugs For Harley Davidson Evo – Top 5 Spark Plugs In 2022

Food enthusiasts dream of fries. Bike enthusiasts dream of Harley Davidson bikes! Harley Davidson, right from the time of its launch, has been a favorite thanks to its unbeatable performance, aesthetics, and power. 

Best Spark Plugs For Harley Davidson Evo

Anyone who has basic knowledge about bikes knows that Harley Davidsons work on spark-ignition. This means that they require spark plugs to bring the engine to life.

A Brief About Spark Plugs

Spark plugs tend to be underestimated due to their small size but without good quality, performance-oriented spark plugs, your engine will not function properly. They connect the combustion chamber to the ignition system and ensure that the electric current reaches the latter with ease. 

While there are different types of spark plugs, their functionality is pretty much the same. Their build is also similar with a metal shell and an electrode. Variations come in terms of the plug itself, the gap, the insulation, and the electrodes (ground and core). Of course, the brand also plays a major role.

Editor’s Choice

Our article today is dedicated to spark plugs for Harley Davidson Evo, which is in a league of its own. If you have this bike and would like to extract more performance out of it, you must go through the options below.

1. NGK Iridium IX DCPR7EIX Spark Plugs

NGK is never going to stay behind during discussions about spark plugs. This pair of iridium plugs are among theNGK Iridium best and have repeatedly been “Amazon’s Choice” products. Here’s why:

  1. These are iridium spark plugs with nickel core material.
  2. They are pre-gapped, which means that you can install them directly.
  3. The diameter of the electrode is incredibly small, enabling a reduction in the voltage required. This feature also helps extend the service life of the system.
  4. The metal shell has a plating that avoids corrosion.
  5. It improves gas mileage and provides a much better spark than OE standards.
Pros
  • Easy to install
  • Boosts performance
  • Highly reliable
Cons
  • The gap may not be accurate – you will have to gap it yourself

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2. Denso IW16 Iridium Power Spark Plug

Denso is another leading company with outstanding quality. Their spark plugs are among the best and use the latest technology. Here are some interesting highlights:

  1. These spark plugs have an iridium center electrode. The iridium tip measures 0.4mm.Denso power sparks plug
  2. They are designed to have maximum firing potential.
  3. The ground electrode is taper cut and has a U-groove. This feature enables better flame growth and restricts heat quenching.
  4. The plugs are engineered using the 360-degree laser welding process and have exceptional quality and strength.
  5. They reduce rough idling and hard starts.
Pros
  • Improves performance
  • Instant starts
  • Smooth idling
Cons
  • Not pre-gapped

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3. Champion RN12YC Copper Plus Small Engine Spark Plug

Here’s another Amazon’s Choice product for you! This time, Champion is all set to impress you with its CopperChampion RN12YC-2pk Copper Plus Small Engine Spark Plug Plug Spark Plug for Harley Davidson Evo. Read on for more details:

  1. These are exact replacements for OE spark plugs, which means that you do not need to make any adjustments.
  2. They have high structural strength and are well-made.
  3. These are copper plugs and are known to be quite reliable.
  4. With these, you can expect an instant boost in performance.
  5. Misfires and rough idling will be a thing of the past once you install Champion spark plugs.
Pros
  • Installation instructions are direct and clear
  • They are reliable and easy to use
  • Long-lasting
Cons
  • Not as durable as iridium spark plugs

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4. Orange Cycle Parts Performance Spark Plugs – Harley Davidson Evo (Pair)

You may not have heard of Orange Cycle Parts very often but these are good quality plugs that can satisfy your needs. They are direct replacements for Harley Davidson Evo OE plugs and come with the following features:Orange Cycle Parts Performance Spark Plugs

  1. The spark plugs have a ceramic body and are quite aesthetic.
  2. They are conventional plugs with OE heat range.
  3. The insulator of these plugs is made of 95% alumina. 
  4. They are resistant to heat shock.
  5. They provide superior insulation and do not corrode.
Pros
  • Direct OE replacement
  • Can be used right out of the box
Cons
  • Expensive
  • Not as reliable as the others

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5. Performance Spark Plugs – Harley EVO Big Twin

Here’s another excellent option from Orange Cycle Parts. These are superior quality spark plugs with a few veryPerformance Spark Plugs good features. Let’s take a look at what they are:

  1. They are uniquely aesthetic and reliable.
  2. They have a ceramic body that adds to their durability.
  3. You will not go wrong with these plugs because they are made of pure alumina (95%).
  4. They are highly resistant to heat shocks, which means that their heat resistance threshold is quite high.
  5. They also provide excellent insulation.
Pros
  • Good quality shocks
  • Easy to install
  • No adjustments needed
Cons
  • They fall short when it comes to longevity

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Conclusion

To make the most out of your Harley Davidson EVO, you must ensure that it has all the parts that contribute to its performance. If you want more right from day 1, you can immediately swap the OE spark plugs for better ones. Or, you can wait until it’s time to replace and then choose high performance options. Either way, the options we mentioned are highly recommended and can be chosen without a second thought.

 

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