Upgrade your vehicle's performance with the ACDelco GM Original Equipment 41-122 Iridium Spark Plug. With its high-quality iridium construction, this spark plug delivers a consistent and reliable spark, resulting in improved fuel efficiency and engine power. Keep your engine running smoothly with this top-of-the-line spark plug.

About this item

• Iridium offers excellent engine idle stability and smooth performance
• Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
• Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
• One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
• Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
• Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
• ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors