Mercury – Spark Plug Wire Kit | Ignition Wire Set | Marine-Grade Construction | 899329A09Mercury Spark Plug Wire Kit Ignition Wire Set Marine Grade Construction 899329A09 Overview Theres a certain comfort that comes from knowing your big block MerCruiser fires strong every time you turn the key. With an engine as powerful as the 8. 2L, you can feel instantly when the ignition system is healthy the smooth startup, the steady idle, the way the boat responds the moment you bring the throttle forward. The Quicksilver 899329A09 Spark Plug Wire