It’s a Federal pump.
Years? But they were on earlier cars, but my 73 Duster had one on it.
Looks like 64-66.
The larger return line was 66 and earlier.
Alan[/QUOT
I know 65/66 for sure.
Excellent reference 4spdMy TRW pump had a press on pulley same as OP. Bracket looks the same as well. Original 67 cuda sb.View attachment 1715337909
Well show the pic of the back. You show one pic....and you want a part#??
Go to mymopar.com and download manuals for free.