NGK LFR7AIX 2309 Iridium IX Spark Plug for 6.2L Hellcat TRX Trackhawk


NGK-2309 (LFR7AIX)


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NGK LFR7AIX plugs are a perfect replacement plug for stock and modified 6.2L supercharged Hellcat engines for Charger, Challenger, TRX and Trackhawk. You'll need 16 plugs for a full replacement as each cylinder requires two plugs. These plugs are sold individually. Price is for one spark plug, please adjust quantity as needed.

Vehicle Fitment:
6.2L Hemi V8 (Hellcat Demon Redeye Supercharged)
• 2021-2023 Dodge Ram TRX (6.2)
• 2015-2023 Dodge Charger (6.2)
• 2015-2023 Dodge Challenger (6.2)
• 2018-2021 Jeep Grand Cherokee Trackhawk (6.2)

Install Notes for Stock Coil Packs:
0.029" running 11psi (stock boost)
0.027" running 15psi
0.024" running 18psi
0.022" running 20psi
0.020" running 22psi
0.018" running 24psi

Quick Specs:
Part Number: LFR7AIX
Stock Number: 2309
UPC: 087295123096
Heat Range: 7
Thread Size: 14mm

NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high-tech, high performance engines.
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Corrugated ribs prevent flashover
• Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
• Copper core aids in heat removal
• Triple seals prevent leakage

Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .031" (0.8mm)

Center Electrode:
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Projected

Ground Electrode:
Material: Nickel
Type: Standard
Shape: Taper Cut
Quantity: 1

Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 7
Torque Specs: Cast Iron 18-25.3 lb. ft.

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