HP Copper Spark Plug

14mm Thread - .708 in Reach - Heat Range 6 - 8 Pack of 0526

PART# 8196

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Fits 1998-2014 Ford Modular 2 Valve Direct Fire Engines and many 1997-2013 GM / LS Engines.


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.


  • Copper Core - Platinum and Iridium Plugs Are Less Electrically Conductive Than Copper Plugs
  • Heat Dissipation - Copper Dissipates Heat Much Better Than Platinum & Iridium Especially In High Performance Engines
  • “C”- Cut Design - Ground Electrode is Cut Back Unshrouding the Spark Kernel
  • Gapable - Open Up the Gap For a Larger Spark Kernel or Close It Up If Needed For Boosted Applications
  • Machine Rolled Threads - For a More Precise Thread Engagement and Torque Retention
  • Performance - Whether Street or Strip ACCEL Copper Core Spark Plugs Will Deliver


Element MaterialCopper
Emission Code1
Heat Range6
Hex Size5/8"
Product TypeSpark Plug
Projected TipYes
Seat TypeTapered
StyleCopper Core
Thread Size14mm
Part Number8196


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or 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

Tech Resources

Fits 1998-2014 Ford Modular 2 Valve Direct Fire Engines and many 1997-2013 GM / LS Engines.
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      Some parts are not legal for use in California or other states with similar regulations.