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⚡ Ignite your drive with NGK’s cutting-edge spark plugs — where precision meets power!
The NGK ILZKR7B-11S Laser Iridium Spark Plug set features laser-welded iridium tips and platinum ground electrodes for exceptional durability and performance. Designed with a longer insulator nose and triple gasket seal, these plugs prevent carbonization and combustion gas leaks, delivering faster starts, improved fuel economy, and lower emissions. Ideal for a wide range of vehicles, they combine advanced materials and engineering to keep your engine running like new.
| ASIN | B01DMFGRZG |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #69,278 in Automotive ( See Top 100 in Automotive ) #496 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Watercraft, all-terrain-vehicles, off-road-motorcycles, snowmobiles, street-cruiser-motorcycles, street-motor-scooters, street-sport-motorcycles, street-touring-motorcycles |
| Core Material | Iridium |
| Customer Reviews | 4.5 out of 5 stars 1,057 Reviews |
| Global Trade Identification Number | 00087295057872 |
| Included Components | NGK (5787-4PK) ILZKR7B-11S Laser Iridium Spark Plug, Box of 4 |
| Item Type Name | ILZKR7B-11S Laser Iridium Spark Plug, Box of 4 |
| Item Weight | 0.4 Pounds |
| Manufacturer | NGK |
| Manufacturer Part Number | 5787-4PK |
| Manufacturer Warranty Description | Manufacturer |
| Model Number | 5787-4PK |
| OEM Equivalent Part Number | 5787-4PK |
| Thread Size | 14mm x 1.25mm |
| Top Material Type | Metal |
| UPC | 087295057872 603996526402 087295457733 |
| Unit Count | 4.0 Count |
| Vehicle Service Type | Watercraft, all-terrain-vehicles, off-road-motorcycles, snowmobiles, street-cruiser-motorcycles, street-motor-scooters, street-sport-motorcycles, street-touring-motorcycles Vehicle Service Type Watercraft, all-terrain-vehicles, off-road-motorcycles, snowmobiles, street-cruiser-motorcycles, street-motor-scooters, street-sport-motorcycles, street-touring-motorcycles See more |
M**R
Genuine NGK Units. Verified and Confirmed.
These are Genuine NGK ILZKR7B-11S "5787" spark plugs, made in Thailand. As of 3/10/2026, a box of 4 units cost $30.49 USD. This equates to a cost of $7.63 USD per unit. Seller name was "Helpfulhousehold". I performed what is called an 'Equivalency Operation' in the engineering world. AKA, direct comparison. Review: 1. Verified by visual inspection of packaging, which contains correct NGK labeling, NGK Hologram, and NGK barcode. 2. TOPIC NGK UNIT was compared to a VERIFIED HONDA GENUINE PARTS NGK Spark plug. HONDA OEM Part Number 12290-R40-A01, ILZKR7B-11S. This HONDA PART was purchased 3/19/2026 from a Honda Parts Dealership, with a cost of $38.58 USD per unit. Summary: Items display identical manufacturing markings, labeling, and correct sequential manufacturing batch numbering. Objective evidence suggests these items have the same manufacturing facility origin. Conclusion: The plugs I received are genuine NGK products. At a Unit cost of $7.63 USD, this is the best deal I found at the time of purchase. Anyone else who purchases this deal, I recommend you contact NGK and verify. Counterfeit products are very common. This Equivalency Operation was executed in March of 2026.
M**N
Great car part
Easy to install yourself and makes your car run like new.
C**O
OEM plugs
OEM plugs for great price
M**R
Great replacement for antique bike
Perfect for 1986 1100 virago hard to find in parts stores
R**R
Poor Quality Spark Plugs
I installed these plugs in the car and ran several hundred miles (maybe) and now I am having problems with hard starts and getting fault codes on my scanner. I removed the plugs and they look like have been in there for a long time as the center electrode is worn out. They look like the old plugs that had 100K miles on them. I am getting new plugs and will pursue this issue further with Amazon as they should be vetting their suppliers to ensure the parts they sell are quality parts. This is a follow up - I received new NGK spark plugs from Advance Auto Parts, installed them and the hard starts are gone and the car runs fine, no codes.
H**T
Good product
After installation, the car is still have idle sharking issue sometimes. But milage seems improved a bit.
J**O
GENUINE NGK PLUGS AT A GREAT PRICE
THESE ARE GENUINE NGK PLUGS. I submitted information to NGK's customer service dept including pictures, production codes, and resistance measurements from the plugs and they confirmed that they are genuine NGK. I have not had a chance to install them yet but I will be soon. If I was not positive that they were genuine I would never take the chance of ruining my engine on a plug coming apart or failing early.
F**D
NGK, measured 5 ohms.
All spark plugs measured around 5ohms.
I**Z
Excelente
Puestas en civic si 2012. Todo excelente
R**N
good price and quality
good quality and price
J**É
Estafa
Las bujías vienen usadas
J**A
Excelentes bujías.
Excelentes bujías. He usado la marca en varios autos y siempre han funcionado a la perfección.
V**E
Great OEM fit & gap for k24 honda civic
Great, OEM quality & fit for my 2013 Civic! (2.4l) easy to install, packaged great, & works great!
Trustpilot
3 weeks ago
3 weeks ago