bob (I don't know you well enough to call you fat), just type McCulloch 240483 into Google or your favorite search and see what you get.
I found this https://www.kramp.com/shop-nl/en/14603/431079/595265/0/Ignition+coils+McCulloch as one possible source.
Looks like the same part was used on the 620 as well.
Mark
I found this https://www.kramp.com/shop-nl/en/14603/431079/595265/0/Ignition+coils+McCulloch as one possible source.
Looks like the same part was used on the 620 as well.
Mark