






⚡ Ignite your drive with NGK’s laser precision spark plugs!
NGK’s ILZKR7B-11S Laser Iridium Spark Plugs feature a laser-welded iridium tip and platinum disc for superior durability and ignition. Designed with a longer insulator nose and triple gasket seal, they prevent carbonization and combustion gas leaks, delivering faster starts, improved fuel economy, and lower emissions. Enhanced with trivalent metal plating, these plugs resist corrosion and seizing, ensuring long-lasting, reliable performance for cars and trucks.














| Brand | NGK |
| Core Material | Iridium |
| Thread Size | 14mm x 1.25mm |
| Top Material Type | Metal |
| Vehicle Service Type | Car, Truck |
| Global Trade Identification Number | 00087295057872 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 087295057872 603996526402 087295457733 |
| Manufacturer | NGK |
| Model | 4 pack NGK Laser Iridium 5787 Spark Plug |
| Item Weight | 6.4 ounces |
| Product Dimensions | 0.83 x 3.7 x 0.94 inches |
| Item model number | 5787-4PK |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 5787-4PK |
| Position | Front, Rear |
P**.
Authentic NGK plugs (verified by NGK customer support)
These are authentic NGK plugs. Just to be sure, I contacted NGK customer support to verify the authenticity of the plugs. After an inquiry email, a customer service representative contacted me with in 24 hours. I had to send several photos of the plugs and received my verification the next day. I also tested the resistance of each plug with a multimeter, and they were all within spec. Great price and authentic! What more could you ask for?
A**N
Work great
Still working, put them in at least a year ago, and they still work great
A**L
Noice and original
Verified that its original by comparing against my used plugs.Gas consumption immediately dropped noticeably.Just be aware of counterfeits!
J**R
No complaints so far and look to be genuine NGK
No complaints so far. I did inspect them before installing and they look to be genuine NGK spark plugs according to NGK's article "How to identify NGK SPARK PLUGS."The NGKs replaced fake Denso spark plugs from eBay that had worn center electrode tips after only 13k miles (my cheap fault). My worn spark plug gaps ranged from .065" to .073" when they're supposed to be around .044", which the NGKs are pre-gapped to. After installing the NGKs, instantly noticed the increase to normal engine performance.Ordered 2/11/25. Received and installed on my 2012 Acura TSX on 2/12/25.
J**W
Excellent Quality, Great price
While these aren't the cheapest, they aren't that much more than regular spark plugs (less than $10 difference). I'm happy to spend hat small amount to give me the peace of mind that these won't prematurely fail, causing me to have to reinstall them again.This was the first time I had changed out spark plugs. Installing them was smooth. I double checked all the gaps and they are to spec so i didn't have to do any adjustments. They pretty much went as you'd expect.I bought 3 boxes (to change out 2 cars). This was 2 months ago and they fixed the rough idle/misfire in one of the cars. The other car seems to be getting better mpg (nothing significant, just a noticeable small increase).Excellent product!
H**T
Good product
After installation, the car is still have idle sharking issue sometimes. But milage seems improved a bit.
A**R
Fit 2009 Acura TSX
I was skeptical about buying these thinking they were fake but they are the real deal. They had all the correct markings and the 4 digits on them.
B**D
Don't purchase these spark plugs.
I installed these spark plugs within a 1,000 miles they all shorted out . The honda dealer said they were all defective.
Trustpilot
1 week ago
4 days ago