Best Spark Plugs of 2026

"I used this when installing a new lawn-mower battery and connecting wires to an AC disconnect box. It went on smoothly, provided solid sealing, and gave me peace of mind against corrosion. Definitely a smart purchase for anyone handling maintenance or DIY electrical panels."

"When I applied this to the spark plug coil boots on my 2019 Expedition, the grease made installation easy and protected the boots from sticking and moisture. I’m confident I won’t have to deal with damaged boots the next time I remove them. It’s a simple, essential addition to my toolbox."

"This is one of those products people misunderstand. It’s crucial for keeping water and dust out of automotive connectors and spark plug boots. A thin film helps make connections, while a thicker layer insulates. It’s exactly what manufacturers use from the factory, and it works brilliantly."

"As someone who changed the plugs on my 2010 Silverado 1500 5.3L, I found these NGK plugs to be a true lifesaver for my truck. The quality was obvious right away, and they were simple to install with smooth threads. I had to tweak a few gaps, but in the end, my truck is idling and driving much better. I’m really satisfied and would absolutely recommend these."

"I put these plugs in my 2000 GMC SLE and honestly, my truck runs like new with zero spark knock. Outstanding quality at a great price."

"I’ve used NGK plugs before and this set for my '13 GMC Sierra 5.3 didn’t let me down. Perfect fit, and they're much cheaper than the local store. Highly recommend them for anyone looking for a solid replacement."

"I put these spark plugs in my power washer and it started up just like new. Plus, the price was right for my budget."

"After switching to these NGK plugs, my RATO 15 hp engine fires up much smoother than it did with the original cheap plug. The difference is noticeable, and the plugs function well."

"I've used these plugs in my generator and other small engines for over 25 years and they've always worked great. NGK is the only brand I trust for these applications."

"I've always trusted NGK spark plugs for my chainsaw, and this OEM plug for my Echo Timber Wolf proves why. It starts up quicker, has fewer fouling problems, and I appreciate not having to search all over town. Excellent value for the price."

"I only use NGK plugs in my Stihl gear because performance and quality never disappoint. Swapping them out once a year keeps my engines running at their best. NGK is the only brand I trust for this job."

"The NGK (6703) BPMR7A 2-pack is a reliable choice—I've noticed better ignition and overall engine performance since switching. Highly effective and a great deal for the quality you get from NGK."

"After installing these in my 2015 Honda Accord EX, I immediately noticed the car felt smoother and more responsive—not a dramatic transformation, but certainly a boost in liveliness and no more rough idle or sluggish response. It's the same NGK brand my dealer uses, so it's basically OEM quality for an affordable price. If you're looking for authentic spark plugs without overspending, I highly recommend these."

"I bought these NGK LKAR7BIX-11S Iridium IX Spark Plugs for my 2015 Lexus CT200h and was impressed by the outstanding performance and durability. The slimmer design means you’ll need the right socket, but installation was easy once I had the right tool. Since switching, I've noticed smoother acceleration and better engine responsiveness. The fast shipping was a bonus, and I’m very satisfied overall."

"I installed these in my 2014 Corolla and they cleared up my misfire codes immediately. While they say these are pre-gapped, I found the gap to be a bit too tight compared to OEM, so I had to adjust it. Great value, and they work as expected—definitely a cost-effective fix before replacing any coils."

"I bought these as replacements for my X370 and I'm impressed by their flawless fit and affordability compared to the original JD plugs. They worked immediately and I had zero issues installing them."

"After switching to these spark plugs in my mower, I've noticed a huge improvement in starting, even when it's cold out. The previous plugs didn't perform nearly as well. When I need replacements again, I'll definitely buy these."

"I picked these up for my daughter's mower because the ones that came in the tune-up kit were low quality. These new plugs work significantly better and have made a noticeable difference in performance."

"I’ve used these plugs in both my Honda lawn mower and snow blower, and they deliver excellent performance every time."

"This was an exact match for my Honda HRX 217. After installing, my mower is running smoothly as expected."

"NGK plugs are always top quality. They were the right fit for my truck and should keep it running strong for another 100,000 miles!"

"I like that these Champion plugs had the correct gap right out of the package and performed the same as ones I've picked up locally. The two-pack is a good deal, especially since it seems I'm always replacing them when I least expect it."

"They arrived in good condition and worked perfectly on my Briggs and Stratton lawnmower. The packaging could be better, but the plugs themselves were just fine."

"I did some maintenance on my old generator and replaced the spark plug. The engine started up immediately, even before taking the choke off, which says a lot about the plug's reliability."

"After switching to these plugs, I noticed my car is driving noticeably smoother. Installation was a breeze, and I’m happy to recommend them for anyone looking for an upgrade!"

"I've started using NGK on all my vehicles and small engines because they’re reliable, last a long time, and don’t break the bank. Never had any issues so far."

"These plugs were a perfect fit for my 2012 Hyundai Elantra, and they came pre-gapped. Quality and price are excellent, though I wish I'd grabbed the bundle with ignition coils."