Spark Plug Wire Set - 8mm - Yellow with Orange Straight Boots

ACCEL 4039, Spark Plug Wires, Super Stock, Spiral Core, 8mm, Yellow, Set

PART# 4039

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ACCEL's SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.


  • 7mm And 8mm High Gloss Silicone Jacket
  • 450 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • RFI Suppression For Street Driven Applications
  • Custom-fit Universal And Import Coverage
  • High-strength Fiberglass Braid Construction
  • Pre And Post HEI Vehicles


Boot MaterialSilicone
Boot Temperature RatingMeets or Exceeds OE
Emission Code1
Product TypeSpark Plug Wires
ResistanceMeets or Exceeds OE
Spark Plug Boot Angle90 Degree
WarrantyLimited 90 Day Warranty
Wire Diameter8mm
Wire SeriesSuperStock
Wire Temp Rating450 Degree
Part Number4039


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

    *Free Shipping & Handling only offered to the contiguous US on orders over $100.

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