NGK Iridium IX LTR6IX-11 Spark Plugs (Set of 16) (03-08 5.7L, 06-10 6.1L, 11+ 6.4L)

NGK 6509 Iridium IX LTR6IX-11 Spark Plug Set for 03-08 5.7L, 06-10 6.1L & 11-24 6.4L 392 HEMI

SKU: NGK6509 Categories: , Brand:

Price:

$135.00

The Spark Plug Serious Enthusiasts Rely On.

Designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling. NGK iridium plugs represent the ultimate evolution of spark plug technology and performance. The iridium center electrode is both stronger and harder than platinum. This allows NGK engineers to design an ultra-fine (0.6mm) center electrode reducing the voltage requirement for spark. This allows for a brighter, stronger spark from your existing ignition system. The ground electrode has a tapered cut at the firing end which reduces quenching for better flame core growth and increased ignitability. The combination of fine wire center electrode and tapered cut ground will increase performance, improve acceleration, and fuel efficiency.

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” has superior anti-corrosion and anti-seizing properties.

Outstanding acceleration, high fuel efficiency and durability.

Ultimate design, technology and performance.

Features:

  • Resistor: Yes
  • Manufacturer Heat Range: 6
  • Electrode Core Material: Copper
  • Electrode Tip Material: Iridium
  • Insulator Type: Projected
  • Spark Plug Thread Size: 14mm
  • Spark Plug Reach: 25mm
  • Spark Plug Seat Style: Tapered
  • Wrench Diameter: 5/8 in.
  • NGK Part Number: LTR6IX-11
Brand

NGK Spark Plugs

SKU

6509

UPC

087295165096

NGK Part Number

LTR6IX-11

Resistor

Yes

Manufacturer Heat Range

6

Electrode Tip Material

Iridium

Insulator Type

Projected

Spark Plug Thread Size

14mm

Spark Plug Reach

25mm

Spark Plug Seat Style

Tapered

Wrench Diameter

5/8 in.

Compatibility

2003-2008 5.7L, 2006-2010 6.1L & 2011-2024 6.4L 392 HEMI

Make Model Engine Year
Chrysler 300 6.4 2012 - 2023
Chrysler 300C 5.7 2005 - 2008
Chrysler 300C 6.1 2006 - 2010
Dodge Challenger 5.7 2008 - 2023
Dodge Challenger 6.1 2008 - 2023
Dodge Challenger 6.4 2011 - 2023
Dodge Charger 5.7 2006 - 2023
Dodge Charger 6.1 2006 - 2023
Dodge Charger 6.4 2012 - 2023
Dodge Durango 5.7 2004 - 2024
Dodge Durango 6.4 2018 - 2024
Dodge Magnum 5.7 2005 - 2008
Dodge Magnum 6.1 2006 - 2008
Dodge Ram 1500 5.7 2003 - 2008
Jeep Commander 5.7 2006 - 2008
Jeep Grand Cherokee 5.7 2005 - 2021
Jeep Grand Cherokee 6.1 2006 - 2021
Jeep Grand Cherokee 6.4 2012 - 2021
Ram 2500 6.4 2014 - 2024
Ram 3500 6.4 2014 - 2024
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