Best Electrode Core

Autolite Iridium XP Automotive Replacement Spark Plugs, XP5363 (4 Pack)

  • Designed to operate over a much wider heat range than ordinary plugs. Heat Range: 7.
  • High alumina ceramics for better heat transfer and electrical insulation.
  • Solid copper core and nickel tipped electrode provide a longer plus life.
Check Stock

Champion Copper Plus 71 Spark Plug Carton of 1 - RC12YC

  • Copper Plus - Dependable Performance and Durability.
  • Copper core center electrode allows for accurate control of heat range for longer life.
  • Built to ISO and SAE standards for proven performance.
Check Stock

Chop-It

  • Copper Plus - Dependable Performance and Durability.
  • Copper core center electrode allows for accurate control of heat range for longer life.
  • Built to ISO and SAE standards for proven performance.
Check Stock

High Performance Copper Spark Plug with Resistor, 8 Pack

Check Stock

Champion QL78YC (938M) Marine 8 Pack

  • Conventional Spark Plug with Nickel Alloy Electrodes. Copper Core Center Electrode Allows for Increased Conductivity and Heat Control..
Check Stock

Spark Plug Boxed

  • Built to ISO and SAE standards for proven performance.
  • Copper core center electrode allows for accurate control of heat range for longer life.
  • TinTac and ULTRASEAL shell for best corrosion protection of any spark plug in the industry.
Check Stock

ACDelco R44T Professional Conventional Spark Plug Pack of 8

  • Black onyx coating helps prevent corrosion.
  • Copper core thermal properties provide great heat transfer and increased plug durability.
  • Nickel-chrome alloy sheathing to help prevent corrosion on center electrode.
  • Available for use in Marine applications.
Check Stock

Champion Copper Plus Small Engine 938M Spark Plug (Carton of 1) - QL78YC

  • Conventional Spark Plug with Nickel Alloy Electrodes. Copper Core Center Electrode Allows for Increased Conductivity and Heat Control..
Check Stock

NGK 5422 Spark Plug - BR8ES, 4 Pack

  • Designed to operate over a much wider heat range than ordinary plugs.
  • High alumina ceramics for better heat transfer and electrical insulation.
  • Solid copper core and nickel tipped electrode provide a longer plus life.
Check Stock

Champion Copper Plus 404 Spark Plug - RN12YC

  • Copper Plus - Dependable Performance and Durability.
  • Copper core center electrode allows for accurate control of heat range for longer life.
  • Built to ISO and SAE standards for proven performance.
Check Stock