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⚡ Ignite your drive with NGK’s elite spark plugs—because every mile counts!
The NGK Spark Plug LTR6IX-11 6509 Pack of 8 features genuine Iridium IX technology for superior ignition and fuel efficiency. Designed as a direct replacement for specific vehicle models, these spark plugs come pre-gapped and ready to install, delivering reliable performance and durability. Highly rated by users, they help optimize engine power while reducing gas consumption.
| ASIN | B07PJ52HYJ |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #31,244 in Automotive ( See Top 100 in Automotive ) #183 in Automotive Replacement Spark Plugs |
| Brand | NGK |
| Brand Name | NGK |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Copper |
| Customer Reviews | 4.8 out of 5 stars 130 Reviews |
| Included Components | 6509 |
| Item Highlight | Replaces SP526 CYFS12YP 4714 4719 5339 ITV20 IT20TT ITV20TT IVT20TT 6728 9617 HR7MPP30X 3017 XP5263 XP5363 XP5863. |
| Item Weight | 14.08 ounces |
| Manufacturer | NGK |
| Manufacturer Part Number | 6509 |
| Manufacturer Warranty Description | Includes manufacturer provided warranty |
| Model Number | 6509 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 6509 |
| Thread Size | 14mm |
| Top Material Type | Nickel |
| UPC | 087295180334 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |
F**H
Worth the price for saving gas!
NGK brand are decent spark plugs! Never a problem. They are a little more expensive but are worth the price! They last and perform perfectly to lower gas consumption and deliver the spark your vehicle needs for power.
G**.
Perfect for 5.0L Coyote V8
Exact fit. Easy to install. We're all properly gapped right out of the box. And first trip in 5.0L coyote v8 showed a slight improvement in mileage. Use a very small amount of anti-seize when installing.
K**L
Perfect
Put them in my 2015 F150 5.0 V8. Work great, as expected from NGK.
C**R
Instant Performance
Great choice for 2011 Ford F-150 5.0 great performance, installation was open and replace pre-gapped and everything. Durable and smooth after 4 months so far.
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.
T**V
Brilliant
Second or third purchase of these for my 2017 F-150s (x2 of them). Great plug, showed up packaged well…I had to gap them but I expect to do that. Will absolutely buy these again and from this seller.
S**N
Perfect fit for my Ford
The plugs needed to be gapped prior to installation but after installation the truck ran great.
M**A
Best quality, most power and efficiency!
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 months ago
2 months ago