#1.Accel 2418 Spark Plugs For Harley Twin Cam
If you are interested in the best spark plugs for the Harley twin cam, the Accel Spark Plugs are definitely the way to go. They produce one of the largest sparks for way more power at higher RPMs. The build quality is pretty amazing and they definitely last longer than the other brands.
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Best Spark Plugs For Harley Twin Cam
- #1.Accel 2418 Spark Plugs For Harley Twin Cam
- #2.NGK Iridium IX Spark Plug For Harley Twin Cam
- #3.Orange Cycle Parts Iridium Spark Plugs
- #4.Champion 810 Spark Plugs For Harley Engines
- #5.NGK 6046 Iridium Spark Plugs
#1.Accel 2418 Spark Plugs For Harley Twin Cam
When it comes to the best spark plugs for the Harley twin cam, the Accel 2418 Spark Plugs For Harley Twin Cam is definitely a nice option. They are suitable for most twin cam models 1999 and up. We really like these spark plugs because they produce the largest spark for more power at high RPMs. This in turn will improve the throttle response as well as the fuel economy with less fouling.
The installation process is straightforward enough and if you know what you are doing, you can even do it yourself as an amateur. This replaces the OEM part 6R12. Overall, we think that these are quality spark plugs and are built to last longer than most other brands. Accel is an after-market brand that we trust to deliver solid spark plugs for your money.
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#2.NGK Iridium IX Spark Plug For Harley Twin Cam
Next up, we have the NGK Iridium IX Spark Plugs, which are the best spark plugs for Harley if you want something that comes pre-gapped and greatly extends ignition system life. One main thing to note is that the iridium electrode is 25% smaller than a platinum electrode. This also means that it is around a quarter the size of a conventional nickel electrode.
The standout feature is the fact that it has an ultra-small diameter center electrode. This serves to greatly reduce the voltage requirement and boosts performance overall. Lastly, we really like the fact that there’s this metal shell plating that makes it way more anti-corrosive than most other brands.
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#3.Orange Cycle Parts Iridium Spark Plugs
Another great product when it comes to the best spark plugs for Harley is the Orange Cycle Parts Iridium Spark Plugs. These spark plugs are definitely a winner when it comes to corrosion protection and durability. The standout feature is that they have a nice distinctive black ceramic coating that is enhanced with gold coloring to give you the ultimate corrosion protection on the metal shell.
These spark plugs also perform very well and give you a hotter spark. They also last for quite a while and greatly extend your spark plug service life compared to other brands. Overall, we think that these spark plugs are a very good bang for the buck and you are getting amazing quality at a very reasonable price.
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#4.Champion 810 Spark Plugs For Harley Engines
The Champion 810 Spark Plugs For Harley is a great replacement for genuine OEM spark plugs. This is a great brand and tends to run a bit expensive compared to others. We are of the belief that more expensive doesn’t necessarily mean better. In this case, these spark plugs are good but they are not significantly better than the brands we mentioned above.
Overall, we think that the Champion 810 Spark Plugs are good quality and all and definitely perform as expected. They just don’t live up to all the hype that people credit them for. And it is precisely for this reason that we just put these lower on our list. Champion is a great brand in this industry and if you need reliability, it is a brand you can trust.
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#5.NGK 6046 Iridium Spark Plugs
Lastly, there are the NGK 6046 Iridium Spark Plugs, which is yet another pretty solid product when it comes to nice spark plugs for your Harley. All in all, these spark plugs give your engine more power and lead to quick starts. This also means overall better performance and for the small price to pay, we think that it is absolutely worth it.
You are probably wondering, how is this different from all the other spark plugs out there including the ones that we recommended above. In our opinion, it is more durable and lasts longer. Replacing spark plugs can be quite annoying and many people just want a install and forget it kind of deal. With the NGK 6046, you can have an easy installation and long shelf life.
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References
https://en.m.wikipedia.org/wiki/Harley-Davidson_Twin_Cam_engine
https://www.cycleworld.com/harley-davidson-twin-cam-v-twin-motorcycles-history-big-twin
