Need help-pump motor stopping...

[fission7x]

Well...
Motor has no identifying marks. Label is long gone-rusted away.
Took a chance and tore the pump apart and, you're right! It's a Sta-rite Dura-glas series pump, 1-HP.
It has a C105-138PEB impeller in it, which according an owners manual I found on the internet, when installed in the P2RA5E-124L Pump, makes it a 1-HP pump. The ratty silver tag near the pump discharge confirms this (I had to fill in the faded numbers/letters that were hard to read with what I learned from the impeller!).

That would make the motor a 1 HP motor - correct?
I assume I'll replace this with a 1 HP, 1.65 service factor motor, such as an AO Smith QC1102/B848?

Hmmm...Now for a crazy question: Apparently, my filter is a Pac-Fab Tagelus, 24" diameter.
Online references say that it can handle a 1 to 2-HP pump.
Could I replace the impeller in my pump with a 1.5 HP impeller (the C10-137PEB, perhaps) and buy a 1.5 HP motor? Thus having a 1.5 HP pump?
Or would it be worth it?
The current 1 HP pump/motor does push sand out on occasion.

Thanks for all your help!!