Sorry, searched extensively and couldn't find a definitive answer.

On my new PWR radiator, the drain plug that came with the unit consists of a plastic "butterfly"-type threaded plug. Obviously just there for shipping (I hope...can't see that sealing properly or withstanding cooling system pressures). What and where can I get a plug to fit? I've seen a thread on someone suggesting a certain plug from Kragen that will fit a Fluidyne, but I don't know if this will work on the PWR. Anyone out there with experience with this and a solution?

 

Kento: If the M2 radiator is a rebadged PWR, as some have suggested, then try this:
https://www.rx7club.com/forum/showth...hreadid=160307

I actually carried my radiator around with me to check different plugs. Went through maybe 20 at Kragen before finding the one that fit.