1981 p200E pickup coil..do i have the right one?

Hi guys, i just wanted to know..i was looking around on the SIP website...and noticed that there are 2 different types of pickup coils...there is this one:

http://www.sip-scootershop.com/Products/85140000/Pickup+Vespa+PXT5PK50125S.aspx

and this one:

http://www.sip-scootershop.com/Products/18137000/Pickup+Vespa+ET3.aspx

It looks like i have the second one (i remember the green wire) The thing is that it's for an '81 P200E....which one do i need? the first or the second one? if i do have the second one...will it make a difference? thanks fabs