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Accel

Accel 0576 HP Copper Spark Plug - 14mm Thread - Shorty - Each

Part # 0576

14mm Thread - .460 in Reach - Tapered Seat - Sold Individually

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Accel 0576 HP Copper Spark Plug - 14mm Thread - Shorty - Each

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Est. Ship Date: 10/14/2026

$6.94
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ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Features:

  • The Copper core is a better conductor than Iridium or Platinum plugs
  • Copper dissipates heat much better than other materials
  • "C" - Cut Design un-shrouds the spark kernel for a better burn
  • Unlike Iridium or Platinum plugs, the ACCEL HP plugs are gapable
  • Machine rolled threads for precise thread engagement
  • Stock heat range
  • Whether using on the street or on the strip, ACCEL HP Copper Core spark plugs deliver!
  • Sold Individually
Brand Accel
Emission Code2
Hex Size5/8"
Product TypeSpark Plugs
QuantitySold Individually
StyleCopper Core
Thread Reach0.460"
Thread Size14mm
WarrantyManufacturer's Limited 90 Day
UPC743047815786
Part Number0576
2

This part is legal for sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Manufacturer's Limited 90 Day: See Details

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Some parts are not legal for use in California or other states with similar regulations.