ignition coil for mercruiser 5.7

[bozzman3]

Can a universal automotive coil work for my mercruiser 5.7?

 

[langford7]

Re: ignition coil for mercruiser 5.7

You should be able to use any 12V coil.

 

[JustJason]

Re: ignition coil for mercruiser 5.7

alot of things will WORK.
But to work best, stay CG compliant, and help ensure trouble free boating...
you should really use a factory coil.

 

[Maclin]

Re: ignition coil for mercruiser 5.7

Not all 12v coils are equal. Some require external resistance and some do not.

Most would use a 12v coil requiring external resistance, and certainly ANY stock points based ignition is this way.

If you are replacing an existing coil it should be marked on the outside if it has an internal resistor or requires an external resistor.

 

[Bt Doctur]

Re: ignition coil for mercruiser 5.7

also check for compatability between a points system and electronic system