Requesting Info on Clutch Fan

[SnowMonkVX]

Purchased a bunch of various Mopar bits from an estate sale this past weekend, and I'm looking for help identifying this clutch fan.
It is stamped 912773 J66. In
In sharpie it had '426 hemi' written, but I'm obviously not taking that to heart. I've searched the web briefly, and there are 2 threads here that mention it, but no final answers. Is this just a fancy big block fan? I know there are a ton of specific Hemi items, but I'm not holding my breath.

Thank You!

 

[R413]

Nothing fancy, I've seen many of them on other 1966-67 big blocks with AC.

 

[Bird 426]

I have one of those for my Hemi. They came on other vehicles. I think that the Hemi came with the 2863 216, but would say that others were used too.