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NGK

NGK 3951 Spark Plugs TR55 (6 Pack)

  • Based on 4,606 reviews
Condition: New
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$20.60 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Mar 9
Order within 6 hours and 51 minutes
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Features

  • Designed to operate over a much wider heat range than ordinary plugs
  • Resists carbon buildup and pre-ignition
  • Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
  • NGK spark plugs are an OE cornerstone that have provided decades of reliable performance

Description

Sold in packs of 6.

Brand: NGK


Core Material: Copper


Thread Size: 14 milimeters


Top Material Type: Metal


Vehicle Service Type: Car,Truck,SUV,Lawn Mowers,ATV,Motorcycle,Scooter


Brand: ‎NGK


Core Material: ‎Copper


Thread Size: ‎14 milimeters


Top Material Type: ‎Metal


Vehicle Service Type: ‎Car,Truck,SUV,Lawn Mowers,ATV,Motorcycle,Scooter


Automotive Fit Type: ‎Vehicle Specific Fit


UPC: ‎087295139516


OEM Part Number: ‎TR55


Manufacturer: ‎NGK


Model: ‎6 pack NGK V-Power 3951 Spark Plug


Item Weight: ‎0.01 ounces


Product Dimensions: ‎3.31 x 0.94 x 4.98 inches


Item model number: ‎3951


Manufacturer Part Number: ‎TR55


Position: ‎Front, Rear


Date First Available: December 5, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Quality and affordable priced spark plugs
*5/5 Stars* I've had the opportunity to use NGK spark plugs in my vehicle, and I'm thoroughly impressed. Here's why: *Key Features* - *Excellent Performance*: NGK spark plugs provide a reliable spark, resulting in improved engine performance and fuel efficiency. - *Durable Construction*: These spark plugs are built to last, with a long lifespan and resistance to wear and tear. - *Wide Range of Applications*: NGK offers a vast selection of spark plugs for various vehicles, making it easy to find the right one for your needs. - *Easy Installation*: NGK spark plugs are designed for straightforward installation, saving you time and effort. *Performance* NGK spark plugs have made a noticeable difference in my vehicle's performance. The engine runs smoother, and I've experienced improved fuel efficiency. *Recommendation* If you're looking for high-quality spark plugs that deliver exceptional performance and durability, look no further than NGK. They're a trusted brand in the industry, and their spark plugs are a great choice for any vehicle owner. ... show more
Reviewed in the United States on April 9, 2025 by Garrett Cunningham
    • Great plugs
Excellent quality and performing great
Reviewed in the United States on January 22, 2026 by JOHN RUSSELL
    • Quality part.
Good quality. Nice price.
Reviewed in the United States on October 24, 2025 by Richard McDermott
    • Great product
Worked perfectly. Brought my explorer back to life.
Reviewed in the United States on November 4, 2025 by Eddie Turbyfill
    • Ngk spark plug
Good product and fit good.
Reviewed in the United States on January 5, 2026 by Everythingo14
    • Spark plugs
They look like they’re good plugs. Haven’t installed them yet.
Reviewed in the United States on January 26, 2026 by Robert blackmon
    • Spark plugs. NGK good brand
Spark plugs
Reviewed in the United States on February 1, 2026 by Danny Johnson
    • Quality spark plugs at great price
NGK has long been my first choice In spark plugs for Japanese cars and motorcycles, but I usually stuck with OEM brands for American cars. Recently I needed a tuneup on both my 2004 F-150 and 2001 Explorer Sport. I wanted to keep the budget as low as possible so did a lot of shopping around for best prices. The only plugs I found for a lower price were either unbranded or some Chinese name I’ve never heard of. I may be cheap, but I’m not stupid, so I stuck with a quality brand that I know; NGK. I decided to go with the less expensive copper plugs for my Explorer instead of platinum because I don’t put a lot of miles on my vehicles and I couldn’t find any platinum plugs in a pack of 6, only 4 or 8, and the price for singles was considerably higher. Anyway, the only real advantage of platinum is longevity, and if I ever do manage to put another 50k miles on this car I’ll be happy to celebrate with a new set. But with my current driving habits both the car and plugs will most likely outlast me. So, a new set of NGK plugs, along with new NGK plug wires (also purchased from Amazon) has put the zip back into my Explorer. BTW, the plugs are assembled in the USA from Japanese components. ... show more
Reviewed in the United States on October 16, 2023 by Robert B. Sweeney

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