Brand new ignition coil to fit:
Honda CB 550 Nighthawk (1983).
The Ignition coil is 12V, has 100mm mounting points and 2 spade connectors. This coil is made to exceed OEM standard and you will not be disappointed with the quality of it. It is designed to replace either coil 30506-MA6-003 on a CB550 Nighthawk. If you're having issues with the spark on your CB550, then it's a no brainer to get some new coils on there.
These are high quality coils, so you will no longer need to run a ballast resistor in the system. You will get an improved spark guaranteed even if your original coils are okay just by upgrading the coils.