Best place to buy? 502mpi thank u

Ayuh,... What's wrong with the 1 ya got,..??

Most of 'em are just standard GM/Saginaw pumps,...
'bout the only things that change are the mountin' points, or the plumbin' fittin's,...

Thank you!

oh yeah, nice thick, shiny black paint. makes them worth 3 times as much as OEM!!

not totally true, the pressure regulator is different, fitting where pressure line screws into as well the spring under...also been told that the marine one uses a bearing on the front for the shaft VS a bushing, never took one apart to verify, but have used GM truck ones and swapped out the regulator and spring from the marine to keep pressure the same...

Then I could take out the spring and regulator from my old one. Gees Merc wants $600.00 for a new pump
from the stealership. Found one at NAPA $45 1989 Corsica. Don't have it in my hand yet so we will see. I've been told that it works.