I thought about it but it was the coil that came on the boat when I bought it so I don't know how old it is or how much life it has left. I replaced the condenser, points, rotor, and cap So just for a peice of mind I wanted to add a new one so I can track its age and know its condition. I now have the other coil as a backup on the boat. Normally I would not have, but for 2 dollars it was a cheap price of mind.