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Your cart is empty.Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity. NGK offers the Quality, Reliability and Durability you'd expect from an OEM manufacturer. NGK is the world's largest supplier of OEM spark plugs. It is recommended to research applications on NGK s website prior to purchase to make sure this OEM part fits your vehicle, including engine, drivetrain and quantity needed.
Tyler B
2025-09-03 17:58:18
I am thoroughly impressed with the NGK 3951 Pack of 8 Motorcycle Copper Spark Plugs (TR55) for several compelling reasons.Firstly, NGK's reputation for quality precedes them, and these spark plugs live up to the brand's renowned standards. The copper core design ensures excellent conductivity and heat dissipation, which is crucial for maintaining optimal engine performance and longevity.Secondly, installation was a breeze. The plugs fit perfectly into my motorcycle's engine without any issues, thanks to NGK's precise manufacturing and adherence to OE specifications. This made the replacement process straightforward and hassle-free.Thirdly, performance-wise, these spark plugs have significantly improved my motorcycle's engine responsiveness and fuel efficiency. Whether I'm cruising on the highway or tackling challenging terrains, I've noticed smoother acceleration and consistent power delivery throughout the RPM range.Moreover, durability is another standout feature of these spark plugs. They have demonstrated exceptional longevity, holding up well under various riding conditions and environmental factors. This reliability gives me peace of mind knowing that my bike's ignition system is in top-notch condition.Lastly, the value for money is undeniable. With the NGK 3951 Pack of 8, I received a cost-effective solution that not only enhances performance but also offers long-term reliability and durability.In conclusion, if you're looking to optimize your motorcycle's engine performance with a set of spark plugs that deliver on all fronts—quality, performance, reliability, and value—look no further than the NGK 3951 Motorcycle Copper Spark Plugs (TR55). They have earned my highest recommendation without hesitation. Five stars!
michael
2025-09-02 11:03:52
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DW Miller
2025-08-14 09:47:40
Got one side replaced and they work fine. Thought I had a fouled plug but it is looking like it is the fuel pressure regulator- but these plugs work great and are a great value.
Terri & chris
2025-07-08 17:08:42
They are just like I thought they would be
TRINO
2025-06-15 18:40:10
No issues
Wise shopper?
2025-06-12 15:51:21
Works
Thomas
2025-05-21 14:10:05
Excellent translation
jaceyon taylor
2025-03-31 17:11:00
5***** Thanks great seller arrive on time
i d mclelland
2025-03-21 11:33:07
EASY PROCESS FROM PURCHASE TO DELIVERY
Roy
2025-02-24 15:06:40
Excellent! Improved performance! Improved fuel mileage! Car runs like a top with 300k on it!!!
Hasen Alhazmi
2025-02-17 12:10:27
The best product, yes, this is what we are looking for, and the price is reasonable
Frank
2025-01-24 18:03:51
Installed these plugs in my Ford Explorer prior to a 12000 km trip. They performed well and are still doing their job after. Pre gapped and ready to install.
Robert Draper
2024-12-31 11:38:52
They seem okay just have to install them now
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