Accel® (04-08) Ford V8 3-Valve Modular Copper Spark Plugs

  • Sale
  • Regular price $110.95

Compatible: (4.6L/5.4L)

2004 - 2008 Ford F-150 

2004 - 2008 Ford Mustang 



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

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 capable 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.


  • One Piece Design - Won't break off in head during removal like two piece designs
  • 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 capable
  • Machine rolled threads for precise thread engagement
  • One step colder than stock
Emission Code 2
GAP n/a
Heat Range 1 Step Colder
Hex Size 9/16"
Length Standard
Product Type Spark Plug
Projected Tip No
Qty 1
Reach .8125"
Resistor Yes
Seat Type Tapered
Style Copper Core
Thread Pitch 1.25mm
Thread Size 16mm
Torque Specification 20-25 lb.ft