Marquis Pumps Confusion

[Spiderman]

I'm a little confused here.  I'm trying to order two new pumps for a '93 Marquis Voyage.  Part numbers are 630-0404 (2 speed 1.5 HP 48 frame) and 630-0405 (1 speed 1.5 HP 48 frame).   Marquis told me these pumps have a 2" intake and 1 1/2" discharge and that spapartsplus.com would know which pumps I need based on those numbers.  I called spapartsplus.com and they did know what I was talking about with those part numbers.  The 2" intake and 1 1/2" discharge was also throwing them for a loop.  There has to be at least one Marquis dealer here than can tell me what pumps I need.  I want to remove the old pumps and swap in new ones using the existing unions, if possible.  Thanks!

[Pathfinder]

Order just the motors  not the whole pump. The wet ends are ok so why spend more than you have to.  

[Pathfinder]

Have looked at taking the pumps to an Electrical repair shop to have them test the motors it might be something small like a cap.  If they test them and they turn out ok then its your board.  before wasting a few 100 on motors you may not need, explore your options.

[MarKee]

Can you order them directly from the factory?

[Spiderman]

Can you order them directly from the factory?

No, they won't let me

[spaman--]

No, they won't let me

you can buy them from me.

[Vanguard]

Are you positive you need the whole pump?  As suggested, make sure that is the actual problem.  There are other things that can be causing a motor to not run.