Iridium Spark Plug ACDelco

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

Ref: AC-41-101