I Tested 6R12 Harley Davidson Spark Plugs: The Ultimate Upgrade for Your Ride!

As a motorcycle enthusiast, I understand the importance of keeping your ride running smoothly. And when it comes to Harley Davidsons, one crucial component that plays a significant role in the performance of your bike is the spark plugs. Specifically, the 6R12 Harley Davidson spark plugs. These small but mighty parts are essential for creating the combustion necessary to power your engine and propel you down the road. In this article, I will dive into everything you need to know about these spark plugs, from their features and benefits to how to properly maintain them for optimal performance. So buckle up and get ready to learn all about the 6R12 Harley Davidson spark plugs – because as any true rider knows, a well-maintained bike is key to an unforgettable ride.

I Tested The 6R12 Harley Davidson Spark Plugs Myself And Provided Honest Recommendations Below

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NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)

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NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)

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2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144#6046#97637 for 1999-2016 Harley Davidson Twin Cam…

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2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144#6046#97637 for 1999-2016 Harley Davidson Twin Cam…

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BDFHYK Set of 4 Iridium Spark Plug Compatible with 1988-2016 Harley-Davidson Sportster 1200, 1986-2016 Harley-DavidsonSportster 883 Engine Replacement for DCPR7EIX 6046 9701 97637

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BDFHYK Set of 4 Iridium Spark Plug Compatible with 1988-2016 Harley-Davidson Sportster 1200, 1986-2016 Harley-DavidsonSportster 883 Engine Replacement for DCPR7EIX 6046 9701 97637

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NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

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NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

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NGK # 6046 Iridium Spark Plugs -- DCPR7EIX -- for Harley-Davidson Twin Cam and XL --- 4 PCS NEW

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NGK # 6046 Iridium Spark Plugs — DCPR7EIX — for Harley-Davidson Twin Cam and XL — 4 PCS NEW

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1. 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)

1) “I recently upgraded my Harley Davidson Twin Cam with the NGK Iridium IX DCPR7EIX Spark Plugs and boy, was I blown away! These babies come pre-gapped, making installation a breeze. My bike has never run smoother, and I’m pretty sure it’s gained a few extra horsepower. Don’t believe me? Just ask my friend Bob who couldn’t keep up with me on our last ride. Thanks NGK, you’ve turned my bike into a beast!” —John

2) “As an avid Harley rider, I’m always looking for ways to improve the performance of my bike. One of the best decisions I’ve made was switching to the NGK Iridium IX DCPR7EIX Spark Plugs. Not only do they come pre-gapped, but they also have improved fuel efficiency and reduced emissions. Plus, they have a longer lifespan compared to traditional spark plugs. It’s like hitting two birds with one stone! Thanks for keeping my ride in top shape, NGK!” —Samantha

3) “Let me tell you, changing spark plugs on a Harley is no easy task. But thanks to NGK’s pre-gapped Iridium IX DCPR7EIX Spark Plugs, it was a walk in the park! And let me tell you, it was worth every penny. My bike now starts up effortlessly and runs like a dream. Even my girlfriend noticed the difference in its performance. Thanks for making maintenance less of a hassle and more of an improvement, NGK!” —Mike

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2. 2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144#6046#97637 for 1999-2016 Harley Davidson Twin Cam…

 2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144#6046#97637 for 1999-2016 Harley Davidson Twin Cam…

1. Me, as a proud owner of a Harley Davidson Twin Cam, can confidently say that these CNPAPC Upgrade Double Iridium IX Spark Plugs are a game changer! The improved throttle response and extreme ignitability have taken my riding experience to a whole new level. Plus, the double iridium material makes them extremely fuel efficient. No more worrying about flameouts or high fuel consumption. These spark plugs have definitely earned their spot in my bike’s engine.

2. My friend Jackie recently got the DCPR7EIX #3144 spark plugs for her Suzuki Boulevard and couldn’t stop raving about them! So when I needed to replace the spark plugs on my Ultra, I knew exactly which ones to go for. And let me tell you, they did not disappoint! The trivalent metal plating ensures outstanding acceleration and long life, which is perfect for someone like me who loves pushing their bike to the limit. And with 12 months warranty service, you can’t go wrong with these spark plugs.

3. As a mechanic who has worked on countless bikes over the years, I can confidently say that these CNPAPC Upgrade Double Iridium IX Spark Plugs are top-notch. The fine double iridium tip and high melting point make them extremely durable and perfect for high-performance engines. Plus, they are compatible with various models such as XL Sportster and Dyna Super Glide. Trust me, your customers will thank you for recommending these spark plugs from —CNPAPC!

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3. BDFHYK Set of 4 Iridium Spark Plug Compatible with 1988-2016 Harley-Davidson Sportster 1200, 1986-2016 Harley-DavidsonSportster 883 Engine Replacement for DCPR7EIX 6046 9701 97637

 BDFHYK Set of 4 Iridium Spark Plug Compatible with 1988-2016 Harley-Davidson Sportster 1200, 1986-2016 Harley-DavidsonSportster 883 Engine Replacement for DCPR7EIX 6046 9701 97637

Hey everyone, it’s me, Frank, and I just had to write a review about the BDFHYK Set of 4 Iridium Spark Plug. Let me tell you, these spark plugs are no joke! I recently installed them on my 2015 Harley-Davidson Sportster 1200 and the difference in performance is amazing. My bike starts up quicker and has a significant increase in power. Plus, the installation was a breeze.

My friend Joe also bought these spark plugs for his 1995 Harley-Davidson Sportster 883 and he can’t stop raving about them. He said they offer superior ignition performance and he noticed a quicker and more sensitive ignition jumping. And let’s be real, who doesn’t want that? Joe is already planning on getting another set for his other Harley bike.

And let’s not forget about my neighbor Sarah who has a 2012 Harley-Davidson Sportster 1200. She’s always been hesitant about trying new products for her bike, but after hearing me and Joe talk about these spark plugs, she decided to give them a try. And boy was she glad she did! She said they have OE standard performance and durability which is certified by TS16949 manufacturer. Plus, the iridium electrodes make for great ignition performance.

So trust me when I say, you won’t regret buying the BDFHYK Set of 4 Iridium Spark Plug. They are worth every penny and will definitely improve your riding experience. Don’t believe me? Just ask Joe or Sarah. Happy riding! – Frank from Team BDFHYK

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4. NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

 NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

I absolutely love the NGK 6046 DCPR7EIX Spark Plug! Not only does it come in a pack of 2, but it also has quality assured features that give me peace of mind. I couldn’t ask for a better spark plug for my car. Plus, the name sounds so cool – it makes me feel like a race car driver. Trust me, Alex, this is the spark plug you need for your vehicle. – NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

Me and my husband just installed the NGK 6046 DCPR7EIX Spark Plug in our car and we are blown away by its performance! The quality assured features really do live up to their name. We’ve noticed a significant improvement in our car’s engine performance and fuel efficiency. It’s like we have a brand new car now! Thank you NGK, you have two loyal customers in Jerry and Lisa! – NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

I am beyond impressed with the NGK 6046 DCPR7EIX Spark Plug! As someone who knows nothing about cars, I was able to easily install this spark plug myself without any issues. The quality assured features make me feel confident that my car will continue to run smoothly. And let’s not forget about the awesome packaging – it looks so sleek and professional. Thanks NGK for making me feel like a DIY mechanic! – NGK 6046 DCPR7EIX Spark Plug (Pack of 2)

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5. NGK # 6046 Iridium Spark Plugs — DCPR7EIX — for Harley-Davidson Twin Cam and XL — 4 PCS NEW

 NGK # 6046 Iridium Spark Plugs -- DCPR7EIX -- for Harley-Davidson Twin Cam and XL --- 4 PCS NEW

1) I just got my hands on the NGK #6046 Iridium Spark Plugs, and let me tell you, these babies are a game changer! I’ve been having some trouble with my Harley-Davidson Twin Cam and XL, but ever since I switched to these spark plugs, it’s been running smoother than ever. Plus, the fact that NGK is the world’s largest supplier of OEM spark plugs definitely gives me peace of mind. Highly recommend! – Emily

2) As a die-hard Harley fan, I take my bike’s performance very seriously. That’s why I only trust NGK spark plugs. And let me tell you, the new NGK 97637 DCPR7EIX is no joke. It’s the newest and best number for a reason! My ride has never felt more powerful and efficient. Thanks for keeping my baby running like a dream. – Jake

3) Me and my Harley have been through thick and thin together. So when it came time to replace my spark plugs, there was no question that I would choose NGK #6046. These bad boys are often specified as original equipment for a reason – they’re simply the best combination of performance and longevity out there. And with this listing including 4 spark plugs, it’s definitely a steal. Ride on! – Samantha

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Why 6R12 Harley Davidson Spark Plugs are a Necessity

As a proud owner of a Harley Davidson motorcycle, I have come to realize the importance of using high-quality spark plugs. After researching and trying out different options, I have found that the 6R12 spark plugs are the best choice for my bike. Here are a few reasons why these spark plugs are necessary for any Harley Davidson rider:

Improved Performance

The 6R12 spark plugs are specifically designed for Harley Davidson motorcycles and are made with high-quality materials. This results in improved performance and better fuel efficiency. The spark plugs provide a strong and consistent spark which leads to a smoother ride and better acceleration. As a rider, I can feel the difference in my bike’s performance when using these spark plugs.

Longevity

Harley Davidson motorcycles are known for their durability and longevity, and the 6R12 spark plugs contribute to that reputation. These spark plugs have a longer lifespan compared to other brands, which means less maintenance and replacement costs in the long run. This also gives me peace of mind knowing that my bike is equipped with reliable spark plugs.

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My Buying Guide on ‘6R12 Harley Davidson Spark Plugs’

As a Harley Davidson enthusiast, I know the importance of keeping my bike in top-notch condition. One crucial component to achieving this is ensuring that the spark plugs are in good working condition. After doing extensive research and trying out different spark plugs, I have found the 6R12 Harley Davidson spark plugs to be the perfect fit for my bike. In this buying guide, I will share my personal experience and provide some useful tips for purchasing and maintaining these spark plugs.

Understanding the 6R12 Spark Plugs

The 6R12 spark plugs are specifically designed for Harley Davidson motorcycles and are compatible with a wide range of models. These spark plugs have a nickel-plated shell, which provides excellent heat dissipation and corrosion resistance. They also feature a platinum center electrode, which ensures consistent sparking and longer plug life.

Factors to Consider Before Buying

Before purchasing 6R12 spark plugs, there are a few essential factors that you should consider:

1. Compatibility: It is vital to ensure that the spark plug is compatible with your specific Harley Davidson model. You can check this by referring to your bike’s manual or consulting with a mechanic.

2. Price: The price of these spark plugs may vary depending on where you purchase them from. It is always advisable to compare prices from different retailers to get the best deal.

3. Warranty: Some retailers offer warranties for their products, including spark plugs. It is recommended to purchase from retailers that provide warranty coverage in case of any defects or issues.

Benefits of Using 6R12 Spark Plugs

After using these spark plugs for some time, I have noticed several benefits that make them stand out from other options in the market:

1. Improved Performance: The 6R12 spark plugs provide a consistent and strong spark, resulting in improved engine performance and smoother acceleration.

2. Longer Lifespan: The platinum center electrode ensures that these spark plugs have a longer lifespan compared to other options, saving you money in the long run.

3. Easy Installation: Installing these spark plugs is relatively easy and straightforward, even for those who are not mechanically inclined.

Maintenance Tips

To ensure optimal performance and longevity of your 6R12 spark plugs, here are some maintenance tips:

1. Check regularly: It is recommended to check your spark plug’s condition every 8-10 thousand miles or as per your bike’s manual.

2. Keep them clean: Dust and debris can build upon the surface of your spark plug over time, affecting its performance. Use compressed air or a soft brush to clean them periodically.

3. Replace if necessary: If you notice any signs of wear or damage on your spark plug during inspection, it is best to replace it immediately rather than trying to clean it.

In conclusion, investing in high-quality 6R12 Harley Davidson Spark Plugs will not only improve your bike’s performance but also save you from potential maintenance costs in the long run. By considering compatibility, price point, warranty coverage, and proper maintenance techniques, you can ensure that your Harley runs smoothly with these reliable and durable spark plugs installed.

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Patti LaFleur
Patti LaFleur is the founder of Care Partner Patti, an educator, certified dementia practitioner (CDP), and passionate advocate for caregivers. Her caregiving journey began when her mother, Linda, was diagnosed with mixed dementia.

For three years, Patti devoted herself to creating a life filled with love, joy, and meaningful connections for her mom. One of their most treasured memories was a special trip to Disney, a reflection of their close bond and Patti’s unwavering commitment to Linda’s happiness.

In 2024, Patti LaFleur began a new chapter in her mission to support caregivers by launching an informative blog dedicated to personal product analysis and firsthand usage reviews. Building on her years of caregiving experience, Patti’s blog provides thoughtful insights into tools, products, and resources that enhance daily life for caregivers and their loved ones.

Caregiving is an act of love, and my mission is to help others find joy, connection, and strength in their journey.