Description
NGK 1-Step Colder Spark Plugs (Supercharged or Nitrous)
11-25 Chrysler / Dodge / Ram / Jeep 6.4L 392 & 6.2L Hellcat
2309
NGK 1-Step Colder Iridium Spark Plugs provide enhanced reliability for performance engines running elevated boost or nitrous. Featuring a fine-wire 0.6mm iridium electrode and a colder heat range, these plugs help control heat in extreme combustion environments, reducing the risk of detonation and pre-ignition while maintaining a strong, efficient spark.Built for high-stress performance use, these plugs utilize a copper core for superior heat transfer, a pure alumina ceramic insulator for strength and temperature stability, and corrosion-resistant trivalent plating to prevent thread seizure. Triple-seal construction prevents gas leakage, while the projected-tip design promotes better fuel burn and throttle response. Perfect for high-horsepower street and competition setups demanding consistency and durability.
- 1-Step Colder Heat Range for boosted and nitrous-assisted high-output engines
- Fine-Wire 0.6mm Iridium Electrode for precise, consistent spark delivery
- Copper Core ensures efficient heat removal under extreme load
- Projected-Tip Design enhances combustion and throttle response
- Pure Alumina Ceramic Insulator supports high-temperature stability and strength
- Triple-Seal Construction eliminates combustion gas leakage
- Anti-Corrosion Trivalent Plating prevents galling and seizing
- Taper-Cut Ground Electrode promotes efficient flame propagation
- Resistor Plug (5k Ohm) reduces electrical interference
- Gap: .031″ (0.8mm)
- Heat Range: 7
Torque Specs:
- Cast Iron: 18–25.3 lb-ft
- Aluminum: 18–21.6 lb-ft
- Longevity: ~50,000 miles (usage dependent)
- Quantity: Sold individually
- Warranty: 60 days
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