Best Shovelhead Spark Plugs in 2022

Sometimes it might be quite difficult to find the best shovelhead spark plugs. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this shovelhead spark plugs buying guide.

Our Favorite Picks:

The 10 Best Shovelhead Spark Plugs Reviews:

Bestseller No. 1
NGK Resistor Sparkplug BPR5ES-11 for Harley-Davidson Super Glide Low Rider Shovelhead FXS 1977-1982
  • Triple-gasket sealing process.
  • Consistent performance.
  • Plug of choice in millions of vehicles.
  • NGK is the world's largest supplier of OEM spark plugs.
  • Tolerances are so close that the margin for error is near zero.
SaleBestseller No. 2
E3 Spark Plugs E3.34 Powersports Spark Plug, Pack of 1
  • 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) E3.34 spark plug with a 90-day warranty. Features 14mm thread diameter; 0.750-inch thread reach plug with gasket seat; 13/16-inch hex size
  • REPLACES: Champion RN9YC, RN11YC, and RN12YC; NGK BPR5ES, BPR6ES, BPR7ES, and BR5ES
SaleBestseller No. 3
NGK 7131 BPR6ES Standard Spark Plug, Pack of 4
  • Solid copper core for greater spark, superior heat dissipation and conductivity
  • Longer insulator nose prevents fouling
  • Corrugated ribs on insulator prevents flashover
  • Dual ground electrodes for more consistent spark
  • Triple gasket seal eliminates combustion gas leakage and the Zinc dipped shell prevents corrosion
Bestseller No. 4
SHOVELHEAD 1966-1984 MOTOR Motorcycles Oldschool Choppers T-Shirt
  • SHOVELHEAD 1966-1984 MOTOR ENGINE LEGEND NEVER THE FULL SPEED Motorcycles Oldschool Choppers. Ideal for bikers and motorcyclists Chopper riders who love the good old motorcycles. Good iron from Milwaukee USA. Chopper motorcycle motorbike
  • This cool biker motorcycle motif in retro & oldschool style is a cool present or gift idea for men & women, grandpa & grandma, dad & mom who love to ride a motorcycle. As a supplement to the cowl with patches and patches. For the wild years in life.
  • Lightweight, Classic fit, Double-needle sleeve and bottom hem
SaleBestseller No. 5
Autolite Iridium XP Automotive Replacement Spark Plugs, XP5702 (4 Pack)
  • EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
  • FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
  • OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
  • AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
  • CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability
Bestseller No. 6
E3 SPARK PLUGS : HD 5R6A - Pair
  • Fits Shovelhead models 1975/1984 & Big Twin Evolution 1984/1999
  • Developed by researchers from leading engineering universities, E3's patented Edge-to-Edge electrode design delivers maximum performance with increased efficiency
  • More power and reduced emissions
  • Improved fuel economy and longer engine life
  • Replaces HD# 5R6A
Bestseller No. 7
NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack
  • Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
  • 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
  • Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
  • 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
SaleBestseller No. 8
NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
  • 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
SaleBestseller No. 9
(6-Pack) NGK Spark Plugs TR55 (Stock # 3951)
  • Designed to operate over a much wider heat range than ordinary plugs
  • Resists carbon buildup and pre-ignition
  • Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
  • NGK spark plugs are an OE cornerstone that have provided decades of reliable performance
Bestseller No. 10
NGK 6578 Spark Plugs (BPR4ES) - Pack of 2
  • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
  • Corrugated ribs prevent flashover
  • Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
  • Copper core aids in heat removal

Last update on 2022-10-01 / Affiliate links / Images from Amazon Product Advertising API

How to find the best shovelhead spark plugs?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best shovelhead spark plugs for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good shovelhead spark plugs recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the shovelhead spark plugs need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for shovelhead spark plugs to find what you’re looking for:

Brand

In some cases, the brand of shovelhead spark plugs is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given shovelhead spark plugs are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about shovelhead spark plugs are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare shovelhead spark plugs quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best shovelhead spark plugs can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.