

⚡ Ignite your engine’s true potential with NGK Iridium IX – because your ride deserves the spark of excellence.
The NGK LKAR7BIX-11S Iridium IX Spark Plug 4-pack features a laser-welded 0.6mm fine Iridium tip for superior ignitability and durability. Designed for performance enthusiasts, it offers enhanced throttle response, anti-fouling properties, and a triple gasket seal to prevent combustion gas leaks. Trusted as OEM quality, these spark plugs deliver consistent, reliable ignition and improved engine efficiency for a smoother, more responsive driving experience.










| ASIN | B07FNVYGFL |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #2,514 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Core Material | Iridium |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,656) |
| Date First Available | July 17, 2018 |
| Exterior | Painted |
| Global Trade Identification Number | 00087295835012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6.4 ounces |
| Item model number | LKAR7BIX-11S |
| Manufacturer | NGK |
| Manufacturer Part Number | 93501 |
| Model | Spark Plug |
| Position | Front, Rear |
| Product Dimensions | 5.83 x 4 x 1 inches |
| Thread Size | M14 x 1.25 |
| Top Material Type | Metal |
| UPC | 087295835012 |
| Vehicle Service Type | Car, Truck |
X**R
Good!
Received on time. Got my shop to install them. Once i got in the car noticed it was smoother and more responsive. I won’t say night and day difference like omg the it feels like a new car - more so the car felt newer and more alive. No more sluggish response, misfires, or rough idle. Does the job. Also these are pretty much oem spark plugs. When i took mine out, i realized the dealer uses this same NGK brand (2015 honda accord EX, replaced spark plugs at 76k). The picture i have here is of my old ones. You can tell they were due for replacement. Most importantly, you see the NGK label, and these are the original spark plugs the vehicle was made with. So you’re pretty much getting authentic oem plugs for only 40 bucks. Can’t beat it !
H**N
Perfect Fit and Excellent Quality
The NGK LKAR7BIX-11S Iridium IX Spark Plugs are a perfect fit for my 2015 Lexus CT200h. These spark plugs provide outstanding performance and durability, making them an excellent choice for anyone in need of reliable ignition power for their vehicle. One notable feature of these spark plugs is their slightly slimmer design compared to regular spark plugs. This difference necessitates the use of a specific spark plug socket to ensure a proper and secure installation. It's important to have the correct tools on hand, but once you do, the installation process is straightforward and hassle-free. In terms of quality, the NGK LKAR7BIX-11S spark plugs exceed expectations. The Iridium IX construction ensures excellent ignition efficiency and longevity, allowing for consistent and reliable spark generation. This directly translates to improved engine performance and fuel efficiency. I have noticed smoother acceleration and enhanced overall engine responsiveness since installing these spark plugs. Additionally, I would like to commend the fast shipping provided by Amazon. It's always a delight to receive products promptly, especially when it comes to essential vehicle components. The combination of high-quality spark plugs and efficient delivery further emphasizes the convenience and satisfaction of choosing NGK LKAR7BIX-11S Iridium IX Spark Plugs for my Lexus CT200h. In conclusion, the NGK LKAR7BIX-11S Iridium IX Spark Plugs are a perfect fit for the 2015 Lexus CT200h. While their slightly slimmer design may require a specific spark plug socket for installation, the quality and performance they deliver are exceptional. With improved ignition power and enhanced engine performance, these spark plugs are a reliable choice. Combined with the fast shipping from Amazon, my experience with these spark plugs has been nothing short of impressive.
M**S
Perfect !
Excellent! My car runs like new once again ! Great value. And great power. Perfect fit. I recommend this.
S**S
Really good spark plugs
These worked great on my Honda CRV, done everything I’m use to NGK plugs doing.
A**E
2014 Corolla, Fixed check engine light for misfire
These work well in my 2014 Corolla, but gapping them was a little hard. They say these are pre-gapped, but the gap is way smaller than the OEM recommendation -- so much so that it was almost impossible to get a gapping tool between the electrode and the metal. I had 2 cylinders misfire so I just replaced all the spark plugs, and these made the codes go away. I figured I'd try these first as they are cheaper than ignition coils, then go for coils if these didn't work. But they did!
H**Z
Great Spark Plug
This spark plug provides great power and Performance excellently.
E**S
2011 Toyota Corolla type s
Excellent fits perfectly on my 2011 Toyota Corolla type s
S**U
the worst spark plug I’ve ever purchased
I purchased this spark plug in August last year. It worked fine for about 1,000 miles, but despite the claim of lasting at least 50,000 miles, it soon started causing serious issues. At first, there was only minor shaking and unusually fast fuel and oil consumption. I assumed it was an engine issue, since the plugs were new and from a reputable brand. However, the problem kept getting worse until the engine began reporting misfires. Eventually, I had to replace the plugs and coils altogether. When my mechanic removed this plug, I was shocked to see that all the tip points were burned out and blackened. My car does have high mileage, but I only drove less than 10,000 miles in the past year. This is by far the worst spark plug I’ve ever purchased. I even doubt if this is fake. It failed long before its promised lifespan and even cost me extra labor charges to repair.
E**L
Igual al OEM, revisar las ofertas ya que se pueden conseguir la misma marca con diferentes proveedores o inclusive con el mismo pero con un mejor precio. Funcionan muy bien y vienen pre calibradas de fábrica.
M**D
ركبت على الهوندا سيفيك 2017 المكينة الكبيرة 2.0 ممتازين وسعر مناسب وهما طقم 4 حبات بواجي Amazon US البائع شكراً أمازون NGK is the best!
M**S
Cylinder misfire gone after putting in these. My 2011 qx56 (new type) is as smooth as as ever.
J**S
I bought these for my 2014 Mazda Cx5 Gs. I've had the car for 7 years and have never changed the spark plugs. I was getting a few lights on the dash including the engine light and a bit of stuttering when starting the car. I decided to change the spark plugs as I've almost put 90,000kms on the car since I've had it. Very easy to change out and came as a 4 pack. Price was very reasonable and very good quality. I had them changed out in under 15minutes. The car started up instantly. After removing the old spark plugs they were swollen and burnt out. Glad I found these on Amazon at a reasonable price. It's only been 24 hours but so far so good and the car starts up and runs smooth. I will update this in a few months if any changes. I highly recommend these spark plugs and delivery was literally overnight!
D**A
Las puse en un Mazda 3 2015, con motor de 2.5L, las bujias que tenia no me estaban dando problemas pero ya por kilometraje decidi cambiarlas,el consumo que me mercaba la computadora era por cada 100kms/ 8.0L, despues del remplazo bajo a 100km/ 7.4L, las instale con el distribuidor me hicieron un comentario que tal vez a altas revoluciones sienta una diferencia pero hasta el momento no he tenido ningun problema y ya recorri 10,000 kms desde el cambio, quise hacer la review hasta que tuviera el primer servicio despues del cambio.
Trustpilot
2 weeks ago
2 weeks ago