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.

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.
Iridium alloy is extremely durable to heat, corrosion and electrical wear.
Trivalent metal plating - superior anti-corrosion and anti-seizing properties.
Outstanding acceleration, high fuel efficiency and durability.
Ultimate design, technology and performance.
0.6 mm laser welded iridium tip.
Tapered ground electrode

NGK Iridium IX Spark Plugs - DCPR7EIX (Replaces DCPR7E) 97637

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.

  • 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.
  • Iridium alloy is extremely durable to heat, corrosion and electrical wear.
  • Trivalent metal plating - superior anti-corrosion and anti-seizing properties.
  • Outstanding acceleration, high fuel efficiency and durability.
  • Ultimate design, technology and performance.
  • 0.6 mm laser welded iridium tip.
  • Tapered ground electrode to minimize "Quenching Effect".
  • Sold individually.

Plug model: DCPR7EIX.

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