- Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.
- Offering the Quality, Reliability and Durability You’d Expect from an OEM Manufacturer
- NGK is the world’s largest supplier of OEM spark plugs
- Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Quantity Needed.
- This Listing is for 8 3951 TR55 Spark Plugs


Frete Grátis em todo o BrasilProduto Original Importado dos EUA
NGK 3951 Spark Plugs TR55 (8 Pack)
*$435.70
Informação adicional
Brand | NGK |
---|---|
Core Material | Copper |
Thread Size | 14mm |
Top Material Type | Nickel |
Vehicle Service Type | Motorcycle |
UPC | 087295039519 |
Manufacturer | NGK |
Item Weight | 0.01 ounces |
Product Dimensions | 1 x 1 x 1 inches |
Country of Origin | China |
Item model number | 3951 |
Is Discontinued By Manufacturer | No |
Manufacturer Part Number | TR55 |
Date First Available | April 21, 2017 |
TRINO –
They are just like I thought they would be
michael –
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.
Tim –
No issues
michael –
The media could not be loaded.
This set of 8 spark plugs was installed in a 2004 Cadillac DeVille with the 4.6L North Star engine. These are quality spark plugs that will help my engine run at peak performance. I like to change my spark plugs once a year and at the price point of these plugs, it doesn’t break the bank to change them. Also, by changing the plugs every year, and putting some anti seize on the threads, I don’t have to worry about breaking off a plug in the cylinder head, that is a very expensive repair. With aluminum heads that are used on cars and trucks, spark plugs seizing into the heads is a big problem now if plugs aren’t changed more often. I am very happy with these NGK spark plugs and I would recommend them to anyone who needs to change their spark plugs.
Wise shopper? –
These worked fine in my 2004 Ford Crown Victoria, and they gave the car some of its pep back that is lost over the last 20 years.
DW Miller –
5.3 great plugs noticeable difference when switched to ngk
i d mclelland –
Excellent! Improved performance! Improved fuel mileage! Car runs like a top with 300k on it!!!
Gerald Broflovski –
EASY PROCESS FROM PURCHASE TO DELIVERY
Terri & chris –
Works
Tyler B –
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!