ACDelco 41-993 Professional Iridium Spark Plug (Pack of 1)

Specifications:

• Iridium offers better engine idle stability and smoother performance
• Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration
• Iridium fine-wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy
• One piece suppressor seal blocks radio frequencies that can affect vehicle electronics
• Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage