Top 10 Best Harley Evo Spark Plugs Based On Customer Ratings

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Are you looking for Harley Evo Spark Plugs Reviews? Our experts found 55192 number of feedback online for "Harley Evo Spark Plugs" and shortlisted them. This suggestions is created for those looking for their ideal Harley Evo Spark Plugs. On selected products for the Best Harley Evo Spark Plugs you will see ratings. The rating matrix we have generated is based on user ratings found online. Take a look -

Best Harley Evo Spark Plugs
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NoProductScoreAction
1E3 Spark Plugs E3.34 Powersports Spark Plug9.8Check it on Amazon
2XMMT 4Pcs Motorcycle Spark Plugs Head Bolt Cover for Harley Sportster Twin Cam Big Twin 1340 Evo9.8Check it on Amazon
3Bid4ze Black Aluminum Spark Plug Caps Case 4x Head Bolt Covers Fit For Harley Twin Cam Sportster XL883 XL1200 Big Twin 1340 Evo 1999-Later9.8Check it on Amazon
4NGK Iridium IX BKR5EIX-11 Spark Plugs for 1984-2000 Harley Davidson Big Twin (Pair)8.8Check it on Amazon
5NGK Iridium IX DCPR8EIX Spark Plugs for 2006-2016 Harley Davidson V-Rod (Pair)8.8Check it on Amazon
6Champion Copper Plus 404 Spark Plug (Carton of 1)8.8Check it on Amazon
7Champion RN12YC-2pk Copper Plus Small Engine Spark Plug # 404 (2 Pack)8.8Check it on Amazon
8Harley Sportster Roadster XL 1200R Iridium Performance Spark Plugs Pair repl. OEM# 6R128.6Check it on Amazon
9E3 Spark Plugs E3.36 Powersports Spark Plug8.4Check it on Amazon
10Harley Electra Glide Classic Performance Spark Plugs Pair repl. OEM# 6R128.2Check it on Amazon

Comparison Chart for Best Harley Evo Spark Plugs

We’ve scanned 55192 reviews for you. If you are looking for the Harley Evo Spark Plugs than this review article may help you.

Table Of Content:

1. E3 Spark Plugs E3.34 Powersports Spark Plug

E3 Spark Plugs E3.34 Powersports Spark Plug, Pack of 1Check it on Amazon
  • FOR HIGH-PERFORMANCE ENGINES: Motorcycle spark plug for a variety of powersport applications, specifically designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions.
  • PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 2 legs that help facilitate optimal heat transfer and withstand the intense vibration of powersport engine applications.
  • IMPROVED STARTS: Patented Edge-to-Edge design concentrates spark energy, which results in quick and easy starts in any conditions.
  • WHAT’S INCLUDED: One (1) E3.
  • REPLACES: Champion RN9YC, RN11YC, and RN12YC; NGK BPR5ES, BPR6ES, BPR7ES, and BR5ES
  • Fit type: Universal Fit

2. XMMT 4Pcs Motorcycle Spark Plugs Head Bolt Cover for Harley Sportster Twin Cam Big Twin 1340 Evo

XMMT 4Pcs Motorcycle Spark Plugs Head Bolt Cover for Harley Sportster Twin Cam Big Twin 1340 Evo,ChromeCheck it on Amazon
  • Fitment: Fir for Harley all Twin Cam models 1999-Later, Fit for Big Twin 1340 Evo Models 1985-1999, Fit for all Sportster models 1986-Later.
  • Package included: 4x Head Bolt/Nut Covers ; Note: Please check the Size before you purchase
  • Outside Diameter: 28mm (1 1/8″), Inside Diameter: 15mm (9/16″)
  • They are for the head bolts on either side of the spark plugs.
  • Warranty:XMMT store offer 24 hours customer service and 30 days warranty.

3. Bid4ze Black Aluminum Spark Plug Caps Case 4x Head Bolt Covers Fit For Harley Twin Cam Sportster XL883 XL1200 Big Twin 1340 Evo 1999-Later

Bid4ze Black Aluminum Spark Plug Caps Case 4x Head Bolt Covers Fit For Harley Twin Cam Sportster XL883 XL1200 Big Twin 1340 Evo 1999-LaterCheck it on Amazon
  • Feature】Built-in aluminum material that can keep and hold the bolt tightly when riding bikes.
  • Exterior】They are for the head bolts on either side of the spark plugs.
  • Fitment】Fir for Harley all Twin Cam models 1999-Later, Fit for Big Twin 1340 Evo Models 1985-1999, Fit for all Sportster models 1986-Later.
  • Mount】Easy installation. Upgrade your bike with a more attractive look!
  • Service】Warranty:Bid4ze store offer 24 hours customer service and 30 days warranty.

4. NGK Iridium IX BKR5EIX-11 Spark Plugs for 1984-2000 Harley Davidson Big Twin (Pair)

NGK Iridium IX BKR5EIX-11 Spark Plugs for 1984-2000 Harley Davidson Big Twin (Pair)Check it on Amazon
  • Come pre-gapped
  • The iridium electrode is 25% smaller than a platinum electrode, and it’s just 1/4 the size of a conventional nickel electrode.
  • Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
  • The ultimate in spark plug technology and performance from the industry leader
  • New metal shell plating has enhanced anti corrosion qualities

5. NGK Iridium IX DCPR8EIX Spark Plugs for 2006-2016 Harley Davidson V-Rod (Pair)

NGK Iridium IX DCPR8EIX Spark Plugs for 2006-2016 Harley Davidson V-Rod (Pair)Check it on Amazon
  • Come pre-gapped
  • The iridium electrode is 25% smaller than a platinum electrode, and it’s just 1/4 the size of a conventional nickel electrode.
  • Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
  • The ultimate in spark plug technology and performance from the industry leader
  • New metal shell plating has enhanced anti corrosion qualities

6. Champion Copper Plus 404 Spark Plug (Carton of 1)

Champion Copper Plus 404 Spark Plug (Carton of 1)Check it on Amazon
  • Copper Plus – Dependable Performance and Durability
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Durable: Champion copper plus spark plugs are built to ISO and SAE standards for proven performance; Champion’s patented SAC-9 semi-conductor resistor provides maximum EMI and RFI suppression.
  • Champion copper plus spark plugs use TinTac and Ultraseal Shells, this eliminates the need for the use of anti-seize compound during installation by providing the best corrosion protection of any spark plug in the industry.
  • The Champion copper plus spark plug features a copper core electrode that provides increased conductivity and heat control while delivering good overall wear characteristics.
  • Provides longer life; Copper core center electrode allows for accurate control of the plug’s heat range, optimizing the plug’s performance and adding to the longevity of the spark plug.

7. Champion RN12YC-2pk Copper Plus Small Engine Spark Plug # 404 (2 Pack)

Champion RN12YC-2pk Copper Plus Small Engine Spark Plug # 404 (2 Pack)Check it on Amazon
  • Sold on Amazon

8. Harley Sportster Roadster XL 1200R Iridium Performance Spark Plugs Pair repl. OEM# 6R12

Harley Sportster Roadster XL 1200R Iridium Performance Spark Plugs Pair repl. OEM# 6R12Check it on Amazon
  • The ultimate in spark plug technology and performance
  • Iridium electrode is smaller than a standard electrode; requires less voltage
  • Hotter spark and extended spark plug service life compared to conventional plugs
  • Has the distinctive black ceramic with and gold-colored corrosion-protected coating on the metal shell.
  • Sold in pairs and replaces Harley# 6R12 / NGK# DCPR7EIX

9. E3 Spark Plugs E3.36 Powersports Spark Plug

E3 Spark Plugs E3.36 Powersports Spark Plug, Pack of 1Check it on Amazon
  • FOR HIGH-PERFORMANCE ENGINES: Motorcycle spark plug for a variety of powersport applications, specifically designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions.
  • PATENTED TECHNOLOGY: DiamondFIRE ground electrode is secured to the shell with 2 legs that help facilitate optimal heat transfer and withstand the intense vibration of powersport engine applications.
  • IMPROVED STARTS: Patented Edge-to-Edge design concentrates spark energy, which results in quick and easy starts in any conditions.
  • WHAT’S INCLUDED: One (1) E3.
  • REPLACES: Champion RA6HC and RA8HC; NGK DPR7EA9, DPR8EA9, DR7EA, DR8EIX, and DR8ES.
  • Fit type: Universal Fit
  • The patented DiamondFIRE ground electrode is secured to the shell with two legs to help facilitate heat transfer, and to withstand the intense vibration of powersport engine applications.

10. Harley Electra Glide Classic Performance Spark Plugs Pair repl. OEM# 6R12

Harley Electra Glide Classic Performance Spark Plugs Pair repl. OEM# 6R12Check it on Amazon
  • Conventional style spark plugs, available in OEM heat ranges
  • Plugs have a unique look with a black ceramic body
  • Insulator is made of 95% pure alumina, features strong resistance to heat shock and superior insulation.
  • Sold in Pairs
  • Harley Electra Glide Classic

How To Choose The Best Harley Evo Spark Plugs

Does the thought of finding a great Harley Evo Spark Plugs stress you out? Has your mind been juggling between choices when it comes to buying Harley Evo Spark Plugs in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect Harley Evo Spark Plugs for themselves. We understand the stress associated with the buying process!

Since you’re here, you are obviously curious about Harley Evo Spark Plugs. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.

There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.

But that’s not always easy, right? That's why we've taken time to compile a list of the best Harley Evo Spark Plugs in today's market, on your behalf, so that there will be no more worries for you.

How did we come up with the list, you ask? How did we create this buying guide?

  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best Harley Evo Spark Plugs currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-

  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.


Top Harley Evo Spark Plugs brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.

  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top Harley Evo Spark Plugs based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the Harley Evo Spark Plugs before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the Harley Evo Spark Plugs they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good Harley Evo Spark Plugs, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your Harley Evo Spark Plugs before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable Harley Evo Spark Plugs will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good Harley Evo Spark Plugs if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated Harley Evo Spark Plugs on the market, the products that got mostly negative ratings get filtered and discarded.
These are the criteria we have chosen our Harley Evo Spark Plugs on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.

Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any Harley Evo Spark Plugs featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.

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