ACDelco GM Original Equipment 41-109 Iridium Spark Plug

Specifications:

* 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
* GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
* GM regularly updates production and service part designs to integrate new materials and technologies