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jvcobra
10-13-2009, 11:50 AM
One of the mounting studs broke off of my power steering pump so I looked online for a replacement. The Mercruiser version is almost $500!! Will a regular GM automotive pump work as a replacement? Anyone have this experience? It would be for a 502 Mag.

Thanks,
Joe
MOP
10-13-2009, 01:01 PM
Is it the one at the top that screws into the tank, if so it is available at Chevy for about $8. I had mine break last year!!!

Phil

P.S. the automotive pump is the same animal!
jvcobra
10-13-2009, 01:32 PM
Is it the one at the top that screws into the tank, if so it is available at Chevy for about $8. I had mine break last year!!!

Phil

P.S. the automotive pump is the same animal!

Yes, that's the one! If I can just replace the stud that would be nice since the pump is fine. You don't happen to remember the Chevy p/n by chance?
jvcobra
10-13-2009, 01:34 PM
http://www.lategreatchevy.com/product.asp?pf%5Fid=561350&dept%5Fid=1835

This looks like it.
MOP
10-13-2009, 06:21 PM
http://www.lategreatchevy.com/product.asp?pf%5Fid=561350&dept%5Fid=1835

This looks like it.

That is it!!
gcarter
10-13-2009, 09:32 PM
Yep, I went through that w/the Minx.
FWIW, instead of ever buying a Merc marine rebuilt P/S pump, if you remove all these studs, the cartridge will come out the front of the reservoir and you can replace it w/most any rebuilt GM P/S pump.
And oh yeah.....those studs are metric.
Found out the hard way.
jvcobra
10-14-2009, 09:07 AM
There is actually a standard and metric version depending on what type of pump you have. For anyone else looking for these studs:

3/8-16 UNC Stud GM Part#: 5689546
M10 -1.5 Stud GM Part#: 7831388

I had to get them online since my local dealer didn't have them but for three studs and shipping it was $20, a lot cheaper then a new pump! :)