⚡ Ignite your drive with NGK's iridium power – because every spark counts!
The NGK 6509 Iridium Spark Plug LTR6IX-11 is a high-performance ignition component featuring a durable iridium core and a universal 14mm thread size. Sold in a convenient pack of six, these lightweight plugs are designed for reliable, efficient engine starts across a broad range of vehicles, backed by NGK's trusted manufacturing excellence.
| Brand | NGK |
| Core Material | Iridium |
| Thread Size | 14mm |
| Top Material Type | Iridium |
| Vehicle Service Type | Car |
| Automotive Fit Type | Universal Fit |
| UPC | 087295065099 |
| Manufacturer | NGK |
| Item Weight | 10.6 ounces |
| Product Dimensions | 3.7 x 0.94 x 4.98 inches |
| Item model number | LTR6IX-11 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 6509 |
D**3
2014 Acadia started purring
Worked great in 2014 Acadia. After replacing the spark plugs and the gasket, the car purred and accelerated great. I can feel the difference. I watched a YouTube video about replacement and I was done in 90 minutes. I haven't changed the spark plugs since we got the car at 70K miles, and now it has 160k miles.
S**A
Great product
Works great
C**S
Great timing and quality
Shipping and price was perfect for the situation
C**N
Great product
Great spark plug
J**E
Perfect fit
These spark plugs installed without issues on my 5th gen Camaro. They fit perfectly and they function without issue. I haven't put many miles on them, but they keep my engine idling a lot better than the replaced spark plugs. I can't comment on performance just yet, but I expect that they will meet the performance of the original spark plugs.
H**Z
Bujias
Muy buenos
W**.
Fixed Acadia misfire
Cured the occasional stumble/misfire I was experiencing on my 150k-mile 2014 Acadia. No fitment problems as a replacement for the stock ACDelco plugs.
B**O
Spark plug 6 pk
These plugs were exact fitment with gap accuracy on the money! My vehicle takes off now. The engine runs much smoother than it was running! I believe I'm now getting the accurate gas mileage now... No Misfires at all. I hand wrench them all the way in, the grooves were exact! I didn't even have to torque wrench them. But I made sure they were at the accurate torque. I recommend these plugs besides the OEM plugs.
Trustpilot
3 weeks ago
2 weeks ago
