Description

ACDelco GM Original Equipment 41-147 Iridium Spark Plug (12662396)

ACDelco GM Original Equipment 41-147 Iridium Spark Plug is a genuine GM replacement component designed to match the fit, form, and function of the original spark plug installed from the factory. Sold under part number 12662396, this iridium spark plug delivers reliable ignition, excellent durability, and consistent performance on supported GM gasoline engines.

Key Features

• Genuine GM Original Equipment
  Built to GM specifications to help maintain original performance, drivability, and reliability.

• Iridium center electrode
  Iridium technology offers high melting point and excellent wear resistance for longer service life compared to conventional copper plugs.

• Consistent spark and combustion
  Helps provide stable idle, strong cold starts, and smooth acceleration under various driving conditions.

• Optimized fuel efficiency and emissions
  Proper ignition and combustion can support better fuel economy and help maintain emissions performance when used as part of a well‑maintained ignition and fuel system.

• Precise fit and function
  Designed to fit the specified GM cylinder heads and ignition systems with correct heat range and thread design, reducing the risk of misfires and performance issues when installed correctly.