Marine Ignition Coils

Like their automotive counterparts, marine ignition coils are responsible for transforming low-voltage impulses into high-voltage ones that finally come to spark plugs. The common construction and working principle of most ignition coils are mainly the same, although their design and power may greatly differ. In a nutshell, a coil consists of two sealed wire windings, the primary and secondary one, for low and high voltage respectively. Each of them has its own electrical resistance; this parameter has to always be within a certain range and is often used to check the coil's condition with the help of a multimeter.

Over time, the coil's isolation or windings may get damaged, which results in a number of issues such as troubles with engine start, erratic operation of the motor, or even its stalling. All of them are caused by misfiring, and it's needless to say, you don't want to face such problems when you're out on the water. The coils are not subject to repair, only replacement. If you need any of them for your boat, check out our online collection of these products. Sourced from reputable brands, they boast high quality and long-lasting durability.