

⚡ Ignite your Ford’s potential with NGK Iridium IX – where power meets precision!
This 8-pack of NGK Iridium IX 6509 spark plugs offers a direct OEM replacement designed specifically for Ford F-150 5.0L engines (2011-2014). Featuring a durable iridium core for enhanced spark efficiency and longevity, these plugs deliver reliable ignition performance, improved fuel economy, and reduced emissions. Backed by NGK’s trusted brand reputation and manufacturer warranty, this set ensures your truck runs smoother and stronger mile after mile.
| ASIN | B07X7HS883 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #73,868 in Automotive ( See Top 100 in Automotive ) #536 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.7 out of 5 stars 21 Reviews |
| Included Components | 6509 |
| Item Weight | 14.08 ounces |
| Manufacturer | NGK |
| Manufacturer Part Number | 6509 |
| Manufacturer Warranty Description | Includes manufacturer provided warranty |
| Thread Size | 14 millimeters |
| Top Material Type | Metal |
| Vehicle Service Type | Car, Truck |
D**E
The right Plug for my 5.0
After a deep dive on the internet I decided these plugs for my 2017 Mustang GT Premium. TH\he gap was a little tight out of the box but I exchanged them in about 2 hours. Probably won't ever need a set of plugs again.
M**E
Great price
Excellent spark plugs and exactly what my Ford F150 5.0 called for. Price was 1/2 of what they sell for in all the local parts stores.
B**D
NGK superiority
I will die on the hill of NGK superiority. They are the best spark plugs on the market, and I will always buy these over OEM, OE or other aftermarket plugs
M**T
Good plugs. Took the rough idle at a morning startup out.
Spark plugs looked good. Exact fit. I was having a rough idle every time I did a morning startup. That is now gone. I have since bought more of these plugs for my other vehicles.
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