NGK IRIDIUM IX Spark Plugs 6509 (Pre-Gapped) – 2011-2020 F150/Mustang GT 5.0L
IRIDIUM IX (LTR6IX-11) 6509
STOCK HEAT RANGE
$76.00
Description
– SET OF 8 –
ULTIMATE PERFORMANCE FOR 2011+ 5.0L
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Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.
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- Pre-gapped to .044″
- Fine iridium tip ensures high durability and a consistently stable spark.
- Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines.
- Trivalent metal plating provides superior anti-corrosion and anti-seizing properties.
- Tapered ground electrode increases ignitability and minimizes quenching.
- High-grade alumina silicate ceramic creates a stronger insulator to reduce dielectric punch-through (caused by spark exiting through side of ceramic).
- Cold-rolled threads prevent cross-threading and damage to cylinder heads.
- Outstanding acceleration, high fuel efficiency and durability.
- Ultimate design, technology and performance.
- Heat range 6.
Additional information
| Weight | 1.50 lbs |
|---|---|
| Dimensions | 9 × 6 × 2 in |
2 reviews for NGK IRIDIUM IX Spark Plugs 6509 (Pre-Gapped) – 2011-2020 F150/Mustang GT 5.0L
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Bobby Spruill (verified owner) –
Fast shipping and great price! Thanks guys!
Jeremiah Moser (verified owner) –
Just recently bought my F150 and got these to change since the truck had 100k miles on it. Got the plugs fast and am looking forward to getting the truck tuned by Oz in the near future. Great service so far!