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HKS Super Fire Racing MR45HLZ Spark Plug - Single (50003-MR45HLZ-1)

$33.00

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HKS Super Fire Racing MR45HLZ Spark Plug - Single (50003-MR45HLZ-1)

$33.00

$33.00

The HKS Super Fire Racing MR45HLZ (50003-MR45HLZ-1) is a high-performance spark plug engineered for tuned engines requiring superior thermal resistance and ignition reliability. As part of the HKS Super Fire Racing series, this plug is designed to handle the increased combustion pressures and temperatures found in forced induction or high-compression powerplants.

  • Enhanced Ignition: Features a 0.6mm iridium alloy center electrode for a concentrated spark and reduced voltage requirements, improving throttle response.
  • Platinum Tip: The outer electrode incorporates a platinum chip to improve longevity and resist electrode wear under extreme racing conditions.
  • Optimized Heat Range: The HKS "45" heat range provides excellent heat dissipation to prevent pre-ignition while maintaining resistance to carbon fouling.
  • High-Strength Construction: Built with a nickel-plated housing to prevent seizing and corrosion in the cylinder head.
  • MPN: 50003-MR45HLZ-1

This is a single replacement spark plug. Please verify your engine's specific gap and heat range requirements prior to installation.

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