NGK Laser Iridium spark plugs deliver a balance of durability and longevity using an iridium‑tipped fine‑wire center electrode paired with high‑grade alumina ceramic and a copper core for heat control. The iridium tip is significantly harder than platinum, giving long life and stable spark performance; these plugs are positioned as premium OE replacements for improved starting and durability.
NGK Iridium Stock Spark Plug For LKAR8BI9