More voltage for extreme conditions.
For off-road, marine, racing, or other extreme environments, MSD Blaster High Vibration ignition coils are the best choice. Their sturdy metal housing is potted with a premium-grade epoxy to completely encase the coils' primary and secondary windings. This protects the coils from high and low frequency vibrations. Alkyd material is used to form the spark tower because of its high dielectric characteristics. Alkyd will not carbon track when high voltage is passed across its surface. For your convenience, a standard canister-type coil mount can be used, and the coils can be mounted in any position.
Ignition Coil, Blaster High Vibration, Canister, Epoxy, Black, 45,000 V, Each