--- product_id: 45306202 title: "NGK 3951 Spark Plugs TR55 (8 Pack)" brand: "ngk" price: "€ 51.90" currency: EUR in_stock: true reviews_count: 13 category: "Ngk" url: https://www.desertcart.pt/products/45306202-ngk-3951-spark-plugs-tr55-8-pack store_origin: PT region: Portugal --- # Long-lasting durability under all conditions Copper core for superior conductivity Precision OEM fit for hassle-free install NGK 3951 Spark Plugs TR55 (8 Pack) **Brand:** ngk **Price:** € 51.90 **Availability:** ✅ In Stock ## Summary > ⚡ Ignite your ride with NGK: Power, precision, and performance in every spark! ## Quick Answers - **What is this?** NGK 3951 Spark Plugs TR55 (8 Pack) by ngk - **How much does it cost?** € 51.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/45306202-ngk-3951-spark-plugs-tr55-8-pack) ## Best For - ngk enthusiasts ## Why This Product - Trusted ngk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Value-Packed 8-Pack:** Get a full set of eight plugs, perfect for multiple vehicles or future replacements—never run out of spark. - • **Fuel Efficiency Boost:** Optimized spark delivery improves combustion, helping you save on fuel without sacrificing power. - • **OEM-Grade Precision Fit:** Engineered to exact manufacturer specs ensuring seamless installation and perfect compatibility. - • **Unmatched Engine Spark Power:** Copper core design maximizes ignition efficiency for smoother acceleration and stronger performance. - • **Endurance That Goes the Distance:** Built to withstand extreme conditions, delivering consistent reliability mile after mile. ## Overview The NGK 3951 TR55 Spark Plugs (8 Pack) combine copper core technology with OEM-level precision to deliver superior ignition performance, enhanced fuel efficiency, and long-lasting durability. Trusted by professionals and ranked among top automotive replacements, these plugs fit cars and trucks perfectly, ensuring a smooth, powerful driving experience every time. ## Description 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. Review: Real good spark plugs by a good company! - I installed these in my 2002 Ford Mustang GT. They came gapped at .054". I checked each one to be sure. Its actually my recommended gap so I didnt need to make any adjustment. Easy to install I also used some anti sieze just to make it easy to remove layer. They looked to be a very well put together plug. I believe these will last a few driving seasons. My car idle smooth and had no misfires. The strong pulling was there felt like a new car again! Review: NGK 3951 Motorcycle Copper Spark Plugs (TR55): Superior Performance and Reliability! - 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! ## Features - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0724YYQG7 | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #4,495 in Automotive ( See Top 100 in Automotive ) #16 in Automotive Replacement Spark Plugs | | Brand Name | NGK | | Compatible with Vehicle Type | Car, Truck | | Core Material | Copper | | Customer Reviews | 4.6 4.6 out of 5 stars (4,934) | | Included Components | 3951 | | Item Weight | 0.01 Ounces | | Manufacturer | NGK | | Manufacturer Part Number | TR55 | | Manufacturer Warranty Description | Includes manufacturer provided warranty | | Model Number | 3951 | | Thread Size | 14mm | | Top Material Type | Nickel | | UPC | 087295039519 | | Unit Count | 8.0 Count | ## Product Details - **Brand:** NGK - **Core Material:** Copper - **Thread Size:** 14mm - **Top Material Type:** Nickel - **Vehicle Service Type:** Car, Truck ## Images ![NGK 3951 Spark Plugs TR55 (8 Pack) - Image 1](https://m.media-amazon.com/images/I/612lGIMwlCL.jpg) ![NGK 3951 Spark Plugs TR55 (8 Pack) - Image 2](https://m.media-amazon.com/images/I/61f5973ZVHL.jpg) ![NGK 3951 Spark Plugs TR55 (8 Pack) - Image 3](https://m.media-amazon.com/images/I/51BbBj2GzDL.jpg) ![NGK 3951 Spark Plugs TR55 (8 Pack) - Image 4](https://m.media-amazon.com/images/I/41xvfqDUyXL.jpg) ![NGK 3951 Spark Plugs TR55 (8 Pack) - Image 5](https://m.media-amazon.com/images/I/61XspBSPGOL.jpg) ## Questions & Answers **Q: Will fit 2004 gmc yukon Denali xl** A: Check with seller. They fit in a 1998 ford f150 4.6. **Q: Le quedan a una Tahoe 2001** A: NGK has multiple grades of plugs that may fit your vehicle. It is recommended to go to NGK site at https://ngksparkplugs.com/en/part-finder to verify the applications that will fit your vehicle. This site will show you all of the available plugs to fit your vehicle and will also show you which grade plug is recommended for the best performance of your specific engine. **Q: Will this fit a 1975 chevy c10 pickup 350 v8 4 barrel ?** A: Yes it will if it got to pop-ups Pistons it won't because the Pistons will close it off depending on your heads you know cuz we could be your head could be Empire from the cylinder or not if it's down into the cylinder your Pistons can cram it shut in a break as what get pop-ups do I don't know what kind of horsepower you pushing but yes your answer is it will fit yes it will fit **Q: Will these fit in a 1994 f150 302/5.0?** A: Will they fit and will they work are 2 different questions. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Real good spark plugs by a good company! *by D***N on April 1, 2026* I installed these in my 2002 Ford Mustang GT. They came gapped at .054". I checked each one to be sure. Its actually my recommended gap so I didnt need to make any adjustment. Easy to install I also used some anti sieze just to make it easy to remove layer. They looked to be a very well put together plug. I believe these will last a few driving seasons. My car idle smooth and had no misfires. The strong pulling was there felt like a new car again! ### ⭐⭐⭐⭐⭐ NGK 3951 Motorcycle Copper Spark Plugs (TR55): Superior Performance and Reliability! *by T***B on June 15, 2024* 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! ### ⭐⭐⭐⭐⭐ Worked great *by W***T on September 24, 2025* These NGK spark plugs are great quality and worked perfectly for my vehicle. Installation was straightforward, and the engine runs smoother and starts easier now. I noticed better fuel efficiency and overall performance compared to my old plugs. A solid value for a full pack of 8, and NGK is a brand I trust for reliability. Definitely recommend! ## Frequently Bought Together - NGK 3951 Spark Plugs TR55 (8 Pack) - ENA Set of 8 Curved Boot Ignition Coil Pack Compatible with Ford Lincoln Mercury 4.6L 5.4L V8 Replacement for DG508 C1454 C1417 FD503 1L2U12029AA I2LU-12A388-AA C1417 DG473 DG481 DG491 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/45306202-ngk-3951-spark-plugs-tr55-8-pack](https://www.desertcart.pt/products/45306202-ngk-3951-spark-plugs-tr55-8-pack) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-24*