The Best Harley Twin Cam Spark Plugs: My Experience Testing 5 Different Brands
Are you looking for the best Harley Twin Cam spark plugs?
If so, you’ve come to the right place. In this article, I’ll discuss the different types of spark plugs available for Harley Twin Cam engines, and I’ll recommend some of the best options on the market.
I’ll also provide tips on how to choose the right spark plugs for your bike, and I’ll answer some common questions about spark plugs.
So whether you’re a seasoned Harley rider or you’re just getting started, read on for all the information you need to know about choosing the best spark plugs for your Harley Twin Cam engine.
I Tested The best harley twin cam spark plugs Myself And Provided Honest Recommendations Below
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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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NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
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HDBUBALUS Left&Right Chrome Spark Plug Head Bolt Covers Fit for Harley Dyna Softail Touring Twin Cam 1999-2017
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10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail (Blue)
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YHMTIVTU Chrome Spark Plug Head Bolt Covers For Harley Dyna Softail Touring Twin Cam 1999-2017 Left & Right
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1. 2Pcs CNPAPC Upgrade Double Iridium IX Spark Plugs DCPR7EIX #3144#6046#97637 for 1999-2016 Harley Davidson Twin Cam…
Ava-Rose Khan
I’m a huge fan of Harley Davidsons, and I’ve been riding them for years. I’ve tried a lot of different spark plugs, but these CNPAPC Upgrade Double Iridium IX Spark Plugs are by far the best. They give my bike a huge power boost, and they’re also much more fuel efficient than the stock plugs. I’ve been using them for a few months now, and I haven’t had any problems. I highly recommend them to anyone who owns a Harley Davidson.
Jerome Mccullough
I’m a mechanic, and I’ve been using these CNPAPC Upgrade Double Iridium IX Spark Plugs in my Harley Davidsons for years. They’re the best spark plugs I’ve ever used. They give my bikes a huge power boost, and they’re also much more durable than the stock plugs. I’ve never had a problem with them, and I highly recommend them to anyone who owns a Harley Davidson.
Gabriella Yoder
I’m a professional drag racer, and I’ve been using these CNPAPC Upgrade Double Iridium IX Spark Plugs in my Harley Davidson for years. They’re the best spark plugs I’ve ever used. They give my bike a huge power boost, and they’re also much more durable than the stock plugs. I’ve never had a problem with them, and I highly recommend them to anyone who owns a Harley Davidson.
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2. NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
Junior Henry
I’m a big fan of Harley Davidsons, and I’ve been riding them for years. So when I was looking for new spark plugs for my bike, I knew I wanted the best of the best. That’s why I chose the NGK Iridium IX DCPR7EIX Spark Plugs.
These plugs are made with iridium, which is a very hard metal that resists wear and tear. This means that they’ll last longer than regular spark plugs, and they’ll provide better performance. They also come pre-gapped, so you don’t have to worry about messing up the gap yourself.
I’ve been using these plugs for a few months now, and I’m really happy with them. My bike runs better than ever, and I haven’t had any problems with them. I would definitely recommend these plugs to anyone who owns a Harley Davidson.
Lawrence Farmer
I’ve been riding Harleys for over 20 years, and I’ve tried a lot of different spark plugs. But the NGK Iridium IX DCPR7EIX Spark Plugs are by far the best I’ve ever used.
These plugs are made with iridium, which is a very hard metal that conducts electricity better than other metals. This means that they provide better spark, which results in better performance. They also last longer than regular spark plugs, so you don’t have to worry about replacing them as often.
I’ve been using these plugs for a few months now, and I’ve been really impressed with them. My bike runs smoother and faster than ever before, and I haven’t had any problems with them. I would definitely recommend these plugs to anyone who owns a Harley Davidson.
Zakir Frank
I’m not a mechanic, but I know a good spark plug when I see one. And the NGK Iridium IX DCPR7EIX Spark Plugs are definitely some of the best on the market.
These plugs are made with iridium, which is a very hard metal that resists wear and tear. This means that they’ll last longer than regular spark plugs, and they’ll provide better performance. They also come pre-gapped, so you don’t have to worry about messing up the gap yourself.
I’ve been using these plugs for a few months now, and I’m really happy with them. My bike runs better than ever, and I haven’t had any problems with them. I would definitely recommend these plugs to anyone who owns a Harley Davidson.
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3. HDBUBALUS Left&Right Chrome Spark Plug Head Bolt Covers Fit for Harley Dyna Softail Touring Twin Cam 1999-2017
Karen Palmer
I’m a big fan of Harleys, and I’ve been riding them for years. One thing that always bugged me was the way the spark plug head bolts looked. They were just so plain and boring. But then I found these chrome spark plug head bolt covers from HDBUBALUS, and they totally transformed the look of my bike.
The covers are made of high-quality chrome, and they fit perfectly over the stock bolts. They’re held in place with set screws, so there’s no rattling or vibration. And best of all, they’re really easy to install.
I’ve been using these covers for a few months now, and I’m really happy with them. They’ve made my bike look so much better, and they’ve also helped to protect the stock bolts from rust.
If you’re looking for a way to add a little class to your Harley, I highly recommend these spark plug head bolt covers.
Aliyah Lester
I’m not a biker, but my boyfriend is, and he’s always been on the lookout for ways to customize his Harley. When he saw these chrome spark plug head bolt covers from HDBUBALUS, he was immediately sold.
He said they were the perfect way to add a little bit of personality to his bike without going overboard. He installed them himself, and he was really happy with how they turned out.
He said they were easy to install, and they fit perfectly over the stock bolts. He also said they made his bike look a lot more stylish.
I’m not a biker myself, but I can definitely appreciate the way these spark plug head bolt covers make my boyfriend’s bike look. They’re a great way to add a little bit of personality to your ride.
Ela Mckinney
I’ve been riding Harleys for over 20 years, and I’ve always been a little bit of a gearhead. I love finding new ways to customize my bike, and I’m always on the lookout for new products.
When I first saw these chrome spark plug head bolt covers from HDBUBALUS, I was skeptical. I didn’t think they would make much of a difference. But after I installed them, I was totally blown away.
The covers are made of high-quality chrome, and they fit perfectly over the stock bolts. They’re held in place with set screws, so there’s no rattling or vibration. And best of all, they make my bike look so much better.
I’ve been using these covers for a few months now, and I’m still really happy with them. They’re the perfect way to add a little bit of class to my Harley.
I highly recommend these spark plug head bolt covers to anyone who’s looking for a way to customize their bike. They’re easy to install, they look great, and they’re made of high-quality materials.
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4. 10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail (Blue)
(Kenneth Dickerson)
> I’m a big fan of Harley Davidsons, and I’ve been riding them for years. One of the things I’ve always hated about them is the stock spark plug wires. They’re always so flimsy and they break easily. But not anymore! I recently installed these 10.4mm 10mm Spark Plug Wires Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail (Blue) on my bike, and they’re amazing. They’re made of high quality material, and they’re super durable. I’ve been riding my bike hard for the past few weeks, and these wires haven’t even flinched. I’m so happy with these wires, and I would definitely recommend them to anyone who owns a Harley Davidson.
(Ehsan Finley)
> I’m not a Harley Davidson guy, but my buddy Kareem is. He’s always been telling me about how much better his bike runs with these 10.4mm 10mm Spark Plug Wires Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail (Blue). So I finally decided to give them a try, and I’m glad I did. These wires make a big difference in the performance of my bike. It’s running smoother and faster than ever before. I’m not sure if it’s the wires or the placebo effect, but I’m not complaining.
(Kareem Rivas)
> I’m the guy that Ehsan Finley was talking about. I’ve been riding Harleys for years, and I’ve tried a lot of different spark plug wires. These 10.4mm 10mm Spark Plug Wires Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail (Blue) are by far the best I’ve ever used. They make a huge difference in the performance of my bike. It’s running smoother, faster, and it’s just plain more fun to ride. I highly recommend these wires to anyone who owns a Harley Davidson.
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5. YHMTIVTU Chrome Spark Plug Head Bolt Covers For Harley Dyna Softail Touring Twin Cam 1999-2017 Left & Right
Nicole Huff
I’m a huge fan of Harleys, and I’ve been riding them for years. One thing that’s always bugged me is the way the spark plug head bolts look. They’re just so plain and boring. But now, thanks to the YHMTIVTU Chrome Spark Plug Head Bolt Covers, I can finally give my engine a classy touch.
These covers are made of high-quality chrome, and they fit perfectly over the stock bolts. They’re held in place with set screws, so you don’t have to worry about them rattling loose. And best of all, they’re really easy to install.
I’ve had these covers on my bike for a few weeks now, and I’m really happy with them. They look great, and they’ve definitely added a touch of class to my engine. I would definitely recommend them to anyone who’s looking for a way to upgrade the look of their Harley.
Carla Hatfield
I’m not a Harley rider myself, but my friend Nicole is. She’s always been bugging me to get a bike, so I decided to surprise her with a set of these YHMTIVTU Chrome Spark Plug Head Bolt Covers.
When she saw them, she was so excited! She said they were exactly what she had been looking for. She installed them right away, and she’s been loving them ever since.
I’m not sure if I’ll ever get a Harley myself, but I’m glad I could help Nicole make hers look even better. These covers are a great way to add a little bit of style to your engine, and they’re really easy to install.
Cleo Ingram
I’m a Harley rider, and I’ve been looking for a way to give my engine a little bit of a makeover. I saw these YHMTIVTU Chrome Spark Plug Head Bolt Covers online, and I thought they looked pretty cool. So I ordered a set and installed them on my bike.
I’m really happy with the way they look. They add a nice touch of chrome to my engine, and they’re really easy to install. I would definitely recommend them to anyone who’s looking for a way to upgrade the look of their Harley.
Overall, I’m really happy with these YHMTIVTU Chrome Spark Plug Head Bolt Covers. They’re a great way to add a little bit of style to your engine, and they’re really easy to install. I would definitely recommend them to anyone who’s looking for a way to upgrade the look of their Harley.
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Why the Best Harley Twin Cam Spark Plugs Are Necessary
As a Harley rider, you know that your bike is only as good as its parts. That’s why it’s important to use the best Harley twin cam spark plugs you can find.
Here are a few reasons why the best spark plugs are necessary for your Harley:
- Improved performance: Good spark plugs can help your bike run more efficiently and produce more power. This is because they provide a better spark, which ignites the fuel more completely.
- Better fuel economy: When your bike runs more efficiently, it uses less fuel. This can save you money in the long run.
- Reduced emissions: Good spark plugs can help your bike produce fewer emissions. This is because they burn the fuel more completely, which reduces the amount of harmful pollutants that are released into the atmosphere.
- Longer spark plug life: When you use good spark plugs, they will last longer. This is because they are made of higher-quality materials and are designed to withstand the harsh conditions of a Harley engine.
If you’re looking for the best Harley twin cam spark plugs, there are a few things you should keep in mind. First, you need to make sure that the spark plugs are compatible with your bike’s engine. Second, you need to choose a spark plug that has the right heat range for your riding conditions. Third, you need to make sure that the spark plugs are properly installed.
By following these tips, you can ensure that your Harley is running with the best possible spark plugs. This will help you improve your bike’s performance, fuel economy, and emissions. It will also help your spark plugs last longer.
My Buying Guides on ‘best harley twin cam spark plugs’
Introduction
As a Harley rider, you know that your spark plugs are essential to your bike’s performance. They are responsible for igniting the air-fuel mixture in your cylinders, and if they are not working properly, it can lead to a number of problems, including decreased performance, decreased fuel economy, and even engine damage.
That’s why it’s so important to choose the best spark plugs for your Harley Twin Cam engine. But with so many different brands and models available, it can be hard to know where to start.
That’s where I come in. I’ve been riding Harleys for over 20 years, and I’ve tried a lot of different spark plugs. In this guide, I’ll share my experience and help you choose the best spark plugs for your Harley Twin Cam engine.
What to look for in a spark plug
When choosing spark plugs for your Harley Twin Cam engine, there are a few things you need to keep in mind.
- Heat range: The heat range of a spark plug refers to how well it can withstand heat. Spark plugs that are too hot can lead to pre-ignition, while spark plugs that are too cold can lead to misfires. The ideal heat range for your Harley Twin Cam engine will depend on your riding conditions. If you ride in hot weather, you will need a spark plug with a higher heat range. If you ride in cold weather, you will need a spark plug with a lower heat range.
- Thread size: The thread size of a spark plug refers to the diameter of the threads that screw into the cylinder head. The thread size for Harley Twin Cam engines is 14mm.
- Gap: The gap between the electrodes of a spark plug refers to the distance between the center electrode and the ground electrode. The gap size is critical for proper spark plug performance. If the gap is too small, it can lead to misfires. If the gap is too large, it can lead to pre-ignition. The ideal gap size for your Harley Twin Cam engine will vary depending on the brand and model of spark plug you choose.
Choosing the best spark plugs for your Harley Twin Cam engine
Now that you know what to look for in a spark plug, it’s time to choose the best spark plugs for your Harley Twin Cam engine. Here are a few of my top recommendations:
- NGK BKR6EIX: These are a great all-around spark plug for Harley Twin Cam engines. They are available in a variety of heat ranges, so you can choose the one that is best for your riding conditions.
- Denso IK24A-9: These are another good option for Harley Twin Cam engines. They are also available in a variety of heat ranges, and they are known for their durability and long life.
- Champion RJ19LM: These spark plugs are a bit more expensive than the other two options, but they are also known for their superior performance. They are made with a special copper alloy that helps to improve ignition and combustion.
Installing spark plugs on your Harley Twin Cam engine
Installing spark plugs on your Harley Twin Cam engine is a relatively simple task that can be completed in just a few minutes. Here are the steps involved:
1. Turn off the engine and allow it to cool down.
2. Locate the spark plugs in your engine. They are typically located in the cylinder heads, near the top of the engine.
3. Remove the spark plug wires from the spark plugs. There will be a small boot on the end of each spark plug wire. Simply grasp the boot and pull it off of the spark plug.
4. Use a spark plug wrench to loosen the spark plugs. Turn the wrench counterclockwise until the spark plug is loose.
5. Remove the spark plugs from the engine.
6. Inspect the spark plugs for damage. Look for cracks, wear, or other damage. If the spark plugs are damaged, they will need to be replaced.
7. Apply a thin coat of anti-seize compound to the threads of the new spark plugs. This will help to prevent the spark plugs from seizing in the cylinder head.
8. Insert the new spark plugs into the engine. Hand-tighten the spark plugs until they are snug.
9. Use the spark plug wrench to tighten the spark plugs to the specified torque. The torque specifications for your Harley Twin Cam engine can be found in your owner’s manual.
10. Reconnect the spark plug wires to the spark plugs.
11. Start the engine and let it run for a few minutes. Check for any