Purchased this to replace the old dry rotted 2 prong cord on a 1969 Fender Super Bassman. Outside diameter seemed a little bit thicker than the original, but not too much, because I was able to re-use the original strain relief with no problem, so I'll say it's a perfect fit. I had to strip back about an extra inch of outside insulation to be able to get the ground wire to comfortably reach the position of the grounding lug, but that's more to do with where the lug was positioned. The 12 foot length is just right for most situations and is generous enough to reach to the floor when you have the amp perched on top of a full stack. Overall quality is great. I highly recommend, and a better choice than chopping the plug off an IEC cord.

I bought two for my Harmon Kardon Citation 16A amp & 17S preamp rebuild projects. The one for my 16A was a refresh of the the existing 3 prong and the one for the 17S was a conversion from ungrounded to grounded. Love the quality molding of the plug and 8’ length. 16 gauge is superior to the original 17S cable.