Best Spark Plugs For Harley Davidson – Right Match Options!

Spark plugs, a fundamental component of your bike’s ignition system, produce sparks necessary for ignition and deliver them to the combustion chamber. Like any other vehicle, the better you maintain your Harley bike, the better it will perform. Installing the correct spark plugs on your Harley is symphonious to that course. To help choose the best spark plugs for Harley Davidson, we’ve made a list of top recommendations for you.

Best for All Touring – E3 E336

Best for Twin Cam – NGK Iridium IX

Best for Sportster – NGK 6046

Best for Softail – OCP0231-AZ3

Best for Dyna – NGK 3932 Standard

Best for Evo – Bosch Double Iridium

Working Process of Spark Plug

So, what does a spark plug do? As the name suggests, it sparks up to create electricity. Ignition coils supply the electrical charge that is created by the spark plug through a wire that runs all the way to your motorcycle’s engine block.

Now, there is a lot of science behind these little devices that can make your ride smoother and extend its lifespan. When you turn on the ignition switch, it sends electricity to your bike’s battery, which feeds power to the coil. The stronger and better quality the spark plugs are, the faster and stronger the electrical charge it will deliver.

Best Spark Plugs for Harley Davidson

Best Spark Plugs for Harley Touring
E3 Spark Plugs E3.36 Powersports Spark Plug, Pack of 1
Best Spark Plugs for Twin Cam
NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
Best Spark Plugs for Sportster
NGK 6046 DCPR7EIX Spark Plug (Pack of 2)
Best Spark Plugs for Softail
Iridium Performance Spark Plugs Pair for Harley Softail Slim Twin Cam repl. Harley# 6R12
Best Spark Plugs for Dyna
NGK 3932 Standard Spark Plug - DCPR7E, 1 Pack
Best Spark Plugs for Evo
Bosch Automotive 9611 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk)
E3 Spark Plugs E3.36 Powersports Spark Plug, Pack of 1
NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
NGK 6046 DCPR7EIX Spark Plug (Pack of 2)
Iridium Performance Spark Plugs Pair for Harley Softail Slim Twin Cam repl. Harley# 6R12
NGK 3932 Standard Spark Plug - DCPR7E, 1 Pack
Bosch Automotive 9611 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk)
Best Spark Plugs for Harley Touring
E3 Spark Plugs E3.36 Powersports Spark Plug, Pack of 1
E3 Spark Plugs E3.36 Powersports Spark Plug, Pack of 1
Best Spark Plugs for Twin Cam
NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
Best Spark Plugs for Sportster
NGK 6046 DCPR7EIX Spark Plug (Pack of 2)
NGK 6046 DCPR7EIX Spark Plug (Pack of 2)
Best Spark Plugs for Softail
Iridium Performance Spark Plugs Pair for Harley Softail Slim Twin Cam repl. Harley# 6R12
Iridium Performance Spark Plugs Pair for Harley Softail Slim Twin Cam repl. Harley# 6R12
Best Spark Plugs for Dyna
NGK 3932 Standard Spark Plug - DCPR7E, 1 Pack
NGK 3932 Standard Spark Plug - DCPR7E, 1 Pack
Best Spark Plugs for Evo
Bosch Automotive 9611 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk)
Bosch Automotive 9611 Double Iridium OE Replacement Spark Plug Up to 4X Longer Life (1 Pk)

Who Makes Best Spark Plugs for Harley Davidson

NGK Spark Plugs

It is one of the most reputed Japan-based manufacturers of spark plugs and other motorcycle accessories. It has been around for over 80 years now, and it continues to produce superior products that will meet your needs in every possible way. Its products are designed to last long before you have to think about replacing them or buying a new one.

E3 Spark Plugs

The brand creates powerful spark plugs through its Diamond-Fire technology, which enhances vehicle performance. In addition to superior products, the company is dedicated to extreme racing and is an expert in producing high-quality and high-performing accessories for your bike.

Buying Considerations for Harley Spark Plugs

Heat Range

The heat range specifies the spark plug’s ability to withstand high temperatures without damage. The higher the number, the better is its performance at high-temperature levels.

Price

Price is always a determining factor when buying anything, including a Harley Davidson Spark Plugs. If you are looking for low and affordable prices, then E3 Spark Plugs or NGK plugs can fit into your budget. They are sold at competitive rates in the market.

Length of Firing Iridium Tip

This refers to how long it takes before you have to replace your Harley Davidson Spark Plug. The longer this part, the better its performance over time.

Warranty Period

Like anyone else, you too would want your money back if you’re not satisfied with an item you’ve purchased. When choosing between different brands and models of this accessory for Harley Davidson bikes, check out whether or not they come with a warranty period.

Harley Davidson Spark Plug Gap Chart

The spark plug gap refers to the distance between the electrode tip and the center part of your bike’s firing chamber. It’s an essential factor to consider when choosing one for your Harley Davidson. A small gap will result in weak fire, while a larger gap makes it hard for electricity to jump over and ignite fuel.

Each spark plug model has specific things you need to check before purchasing one online or from local dealerships. You can check out the Spark Plug Gap Chart, which shows you what sizes are best suited for different bikes.

NGK vs. Denso: Which Brand is Better, Why?

Many people believe that there is no difference in quality and lifespan between these two brands, but this isn’t true. It’s no secret that more people prefer NGK spark plugs over those made by Denso.

But why? While they’re both Japanese brands, Denso is the main producer of spark plugs for vehicles. NGK specializes in racing and high-performance models. I’m not saying that NGK makes the best spark plug in the world! However, most users report receiving great benefits after switching from Denso to an NGK model, mainly quality and life expectancy.

Copper Spark Plugs vs. Iridium Spark Plugs

Iridium and copper spark plugs are the two most popular types of spark plugs. You should choose between them depending on your needs, but both have their pros and cons.

The Iridium spark plugs are really popular due to their reliability and durability. Iridium is a little bit more expensive than copper, but it offers better electrical conductivity that will give you a smoother ride. Copper spark plugs make for finer travel, but they are not as durable or reliable as iridium.

What are the Best Spark Plugs for Fuel Economy?

The exclusive performance of copper spark plugs is something you don’t want to miss. It will change your life, and they are worth every penny. The high melting point of the iridium lets it resist any weather changes, making it the best choice for long-distance travel.

Iridium may be the best spark plug for fuel economy, but it is costly! Copper spark plugs are a great choice if you are really concerned about improving your gas mileage and find yourself changing rides often due to environmental reasons. This type of spark plug will not let you down when it comes to quality as well.

Should I Use OEM Spark Plugs?

The short answer is yes. OEM spark plugs are the best choice if you want the most out of your bike and better gas mileage. However, don’t be mistaken by their cost effectiveness!

You should consider using standard spark plugs unless you want to modify your engine. OEM spark plugs are designed for factory standards, and they are affordable as well. The important thing is that you don’t modify your motor or ignition system because changing the spark plug type will need a recalibration of the car’s computer.

How Often Should I Change Spark Plugs on My Motorcycle?

The most common interval for first-generation spark plug replacement is between 15000 and 16,000 miles. Now, it will depend on your type of motorcycle or vehicle as well as the driving conditions.

If you are using OEM spark plugs, then make sure to change them around every 60,000 miles. That being said, we recommend changing them more often if worn out. A single spark plug can last up to 100000 miles if used properly.

What’s the Best Spark Plugs for Twin Cam Engines?

When it comes to twin cam motors, NGK Iridium IX 6-46 and NGK Iridium IX 6509  are the best choices. With their innovative design and power, these two popular models will make your motorcycle stand out in the crowd and offer a reliable ride.

What is the Best Spark Plug for Harley Road King?

The best spark plug for Harley Road Kings is the Orange Cycle PU-196-OCP because it will save you a ton of money in replacement. This model is affordable and will improve your motorcycle’s ignition system to a new level, so make sure to order it as soon as possible!

Which is the Best Spark Plug for Harley Softail Slim?

The best spark plug for Harley Softail Slim is the Iridium Performance C0231-AZ3. This is one of the most popular choices among bikers, and it’s easy to see why! It will add a new dimension to your bike and give you a smooth ride without any problems.

Concluding Remarks

As you can see, choosing the right spark plug for your Harley-Davidson is not an easy task. The right choice depends on your specific driving conditions and the type of motorcycle or vehicle you have.

If you want to get a smooth ride and improve your bike’s overall performance, then stick to OEM models! Some riders go for iridium spark plugs, while others opt for copper ones.

The choice is yours to make in the end, but you should always consider your needs!

Last update on 2022-05-12  / Images from Amazon Product Advertising API

About the author

Writer @ Motorcycleall.

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