

⚡ Ignite your drive with NGK’s laser precision spark plugs!
The NGK (4589) IFR6T-11 Laser Iridium Spark Plug 8-pack offers professional-grade ignition performance with a laser-welded iridium tip for enhanced durability and fuel efficiency. Designed as a direct OEM replacement, these plugs ensure perfect fitment and smoother engine operation, making them a top choice for vehicle maintenance and long-term reliability.
| ASIN | B01M97PGOT |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #385,067 in Automotive ( See Top 100 in Automotive ) #2,188 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Core Material | Iridium |
| Customer Reviews | 4.7 4.7 out of 5 stars (73) |
| Date First Available | December 24, 2016 |
| Global Trade Identification Number | 00087295845899 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 14.1 ounces |
| Item model number | 4589 |
| Manufacturer | NGK |
| Manufacturer Part Number | 4589 |
| Model | 8 pack NGK Laser Iridium 4589 Spark Plug |
| Position | Front, Rear |
| Product Dimensions | 3.31 x 0.94 x 6.64 inches |
| Thread Size | 14 mm |
| Top Material Type | Iridium |
| UPC | 087295845899 |
| Vehicle Service Type | Car, Truck |
S**Y
Works for 01 Lexus GS430
Works great on 01 Lexus GS430. Engine runs smoother now.
A**R
Best on the market - from my mechanic!
Mechanic at Lexus who installed them was blown away by the price! The perfect spark plugs for my 2008 GX470, very high end. The mechanic said they would help improve gas mileage a bit, they are exactly what the factory recommends, will last a long time, and they will help smooth out the engine as well. Very easy to install as they authenticated to the engine.
X**D
Outstanding Spark Plugs for Optimal Performance!
The NGK (4589) IFR6T-11 Laser Iridium Spark Plugs are a fantastic choice for anyone looking to boost their vehicle’s performance. After installing these in my boat, I immediately noticed smoother idling, quicker starts, and improved throttle response. Overall, these spark plugs deliver high performance and reliability. Highly recommended for any performance enthusiast! 1999 Toyota Epic Lexus V8.
C**S
Great product, reasonable price.
I put these in my 2006 Toyota Tundra 4.7L V8 after having some misfiring issues. It turned out to be the ignition coil, but these spark plugs are running great and are reasonably priced. Much cheaper than paying for the dealership to replace and they're easy to install.
A**R
Great quality iridium spark plugs for my Sequoia.
Great quality iridium spark plugs for my Sequoia.
P**K
Great fit and they work.
Used these on a 2009 Toyota Matrix 2.4L AZ-FE, perfect fit, same length, same suggested gap already pre-set from factory.
G**.
Right part for the right price!
Each plug came ready to install. Just be sure to torque them in properly.
K**N
Perfect
Just what Toyota suggested for the 06 Tundra. Got a little more pep and milage increased slightly.
A**R
Compared with original replaced that were made I Japan... this weren't made in Japan and look different a bit... hope they hold well in the long run will monitor...
Trustpilot
2 weeks ago
1 month ago