ACDelco GM Original Equipment 41-114 (12622441) Iridium Spark Plug (Pack of 1)

Customers find these spark plugs to be genuine OEM parts that work well in GM vehicles and offer good value for money. They fit perfectly and are easy to install, with customers noting they should be installed before the return window. The durability and gap setup receive mixed feedback - while some report perfect condition upon arrival, others mention receiving damaged plugs, and while many confirm correct gapping, one customer reports receiving plugs with different sizes.