HKS 50003-M40G M-Series Super Fire Racing Spark Plug (1 Unit) Heat Range 8 Image1
Images are generic.

HKS M-Series Super Fire Racing Spark Plug (1 Unit) Heat Range 8

  • Heat Range N

  • HKS Spark Plug

  • Priced individually

Product Details

HKS M-Series Super Fire Racing Spark Plug (1 Unit) Heat Range 8



  • 0.6mm Iridium Alloy Center ElectrodeIridium Alloy Center Electrode reduces voltage requirement as well as improving ignition performance and durability.
  • Outer Electrode with Platinum ChipThe Outer Electrode incorporates a square platinum chip which improves urability, and when combined with the iridium center electrode boosts ignition performance. The Outer Electrode features a shortened tip design and tapered shape while maintaining the necessary space for proper ignition.
  • Short Type Outer Electrode (Anti-Vibration)The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration. This anti-vibration design improves longevity of the outer electrode.
  • Thermal EdgeAfter long idling or various combustion conditions carbon buildup can occur causing misfires. The Thermal Edge of the ceramic insulator will discharge to help decrease carbon deposits.
  • Spark Support GapDischarges will occur in the Spark Support Gap (space between the tip of insulator and the base of the outer electrode) to help prevent carbon buildup.



  • Images used may be generic. Actual product may vary
  • Price is for "ONE" spark plug

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