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⚡ Ignite your Harley’s true potential with NGK Iridium IX Spark Plugs!
NGK Iridium IX DCPR7EIX spark plugs deliver cutting-edge ignition performance with a 25% smaller iridium electrode that reduces voltage requirements and extends ignition system life. Pre-gapped for easy installation and featuring enhanced anti-corrosion metal shell plating, these plugs are engineered specifically for 1999-2016 Harley Davidson Twin Cam motorcycles, offering up to 3 horsepower gain and reliable durability.
| Asin | B003BUCNNS |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #3,631 in Automotive (See Top 100 in Automotive) #9 in Automotive Replacement Spark Plugs |
| Brand Name | NGK |
| Compatible With Vehicle Type | Motorcycle |
| Core Material | Nickel |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,028) 4.7 out of 5 stars |
| Included Components | NGK DCPR7EIX |
| Item Type Name | SPARK_PLUG |
| Item Weight | 1.44 ounces |
| Manufacturer | NGK |
| Manufacturer Part Number | DCPR7EIX |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Model Number | DCPR7EIX |
| Number Of Items | 2 |
| Top Material Type | Metal |
| Unit Count | 2 Count |
| Upc | 700155016542 |
User
Excellent trustworthy performance
NGK Iridium IX spark plugs are a great upgrade for anyone looking for reliable performance and long-lasting quality. They provide smooth starts, consistent ignition, and dependable performance. Installation was straightforward, and the build quality feels excellent. Overall, these plugs are a solid choice for improving reliability and getting consistent performance from your engine. Definitely a product I would recommend!
User
Smooth Idle and Stronger Spark – Worth Every Penny
Installed these NGK Iridium IX DCPR7EIX spark plugs in my 1999–2016 Harley Davidson Twin Cam, and the difference was noticeable right away. The bike fired up quicker, idled smoother, and throttle response felt more crisp.NGK quality speaks for itself. The iridium tip is known for durability and a strong, consistent spark, and that’s exactly what you get. They feel like a premium upgrade over standard plugs, especially if you ride often or want dependable performance.Fitment was perfect, no issues with installation, and they came properly packaged as a matched pair. For the price, it’s a solid upgrade that improves reliability and performance without breaking the bank.If you’re running a Twin Cam and want better ignition performance and long service life, these are an easy 5-star choice.
User
Good product
Works as expected
User
They look good but I still have misfires...?
I use NGK plugs in my racecar motors, so I know they are really good quality. These look really nice, and the gap was already perfect, so I didn't have adjust. However, I am still having intermittence misfires in my Harley Softail 103...? My old plugs were looking normally aged, but I didn't know exactly how many miles on them (bought bike used) so I figured it was time to change them. I still have the same misfires, so I can't say for sure it could be these plugs...? I have used fuel injector cleaners, and almost always 93 octane fuel, so I need to try to figure out why it is still bucking occasionally... hopefully not the injectors or ECM... :O(
User
Awesome A+++
Made such a difference in my 2006 street glide power right at hammer A++++ I will never leave any other brand after using these
User
Great
Great
User
Running good so far.
So far these NGK’s work fine replacing the E3’s in my Harley but time will tell.
User
Great
Fit and finish is great. Stout and powerful plugs. Highly recommended.
User
Working as expected
OEM fit for Harley Davidson Fatboy 103 Ci twin cam engine. Smooth starting and running.
User
Harley-Davidson
Good update for my Harley
User
NGK
NGK bonne bougies et livré rapidement
User
Originales
Original.
User
Good plugs
Just as good as the Harley ones. I feel no difference. Running these plugs now for 20k km.
Trustpilot
2 months ago
3 weeks ago