⚡ Ignite your drive with NGK Iridium IX – where power meets precision!
The NGK Spark Plug LTR6IX-11 6509 is a genuine 8-pack of Iridium IX spark plugs featuring a copper core and nickel top for enhanced durability and ignition efficiency. Designed with a 14mm thread size, these plugs offer vehicle-specific fitment for cars and trucks, ensuring reliable performance and easy installation. Packaged with original hardware, this set guarantees a direct replacement that boosts engine responsiveness and longevity.
| Brand | NGK |
| Core Material | Copper |
| Thread Size | 14mm |
| Top Material Type | Nickel |
| Vehicle Service Type | Car, Truck |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 087295180334 |
| Manufacturer | NGK |
| Item Weight | 14.1 ounces |
| Product Dimensions | 3.7 x 0.94 x 6.64 inches |
| Manufacturer Part Number | 6509 |
| Position | Front, Rear |
R**I
Good spark plugs and for a good price. Also grab a gauge to properly gap!
Working well so far. Product was packaged nicely and authentically from NGK. Plugs feel sturdy, and fit in socket and were installed and torqued easily. Plugs will need to be gapped manually with a gauge.
C**N
Ngk plugs are quality
Fit my 2011 F150 5.0 just fine. Helped with fuel economy and can feel the difference in power from my old worn out plugs.
R**S
Great performance. Great gas mileage.
Ngk is my go-to spark plug- all my atvs and vehicles use them.Put these in a 14 F150 FX4 5.0. Saw a jump in mpgs.
D**E
Quality good
Great price
V**A
Good product
Quality product. Work just fine on my 2016 Ford explorer
S**N
Perfect fit for my Ford
The plugs needed to be gapped prior to installation but after installation the truck ran great.
A**R
Outstanding Plug! Iridium - Finally
Finally, an Iridium plug to replace the OEM Motorcraft plug that came with my 2012 F-150 5.0.For a while you couldn't get Iridium for my truck. I tried Platinum - The performance and gas mileage was horrible.Then I tried a new NGK called Ruthenium HX - Better than Platinum but not as good as the Iridium.But now, Finally, NGK came through with an Iridium plug for the 2012 F-150 5.0, and they are as good as OEM.I was averaging 14.8... in town and lucky to get 17 -18 on the highway. Now with the new iridium,.. 16.5 in town and 20-21 on the highway. I gap mine at .049 for a hotter spark. The gap range is .049-.053. Worth every penny.
M**A
Best quality, most power and efficiency!
The media could not be loaded. I replaced the original Motorcraft plugs with these high quality Iridium NGK plugs in my 2017 F150 5.0 with 76,000 miles on it. I IMMEDIATELY noticed an improvement in smoothness power the first time I hit the throttle! I checked the gap, but didn't need to adjust it thanks to great accuracy out of the box. Probably the easiest plugs to install because DOHC Ford lol! These should outlast any other options due to the Iridium's great durability!
Trustpilot
2 days ago
1 month ago
