I have an old Jandy MHPU1.5 that provides water to my waterfall.  The part number for the AO Smith Century Centurion motor is 8-193266-20. The amps are Max 5.4/10.8. The motor does not have CAT, Hp. or SF on it.  It does have Type CX and Frame P56Y. 3450 RPM. There is a separate sticker below the main motor nameplate that reads "1.5 HP UPRATE". I have been looking for a 1.5 HP uprate motor. But after hours of trying to figure this out, it looks like they used a .75 HP motor on the MHPU1.5 and slapped a 1.5 HP UPRATE sticker on it. Do I buy the .75 motor which appears to match with amps and and alterante part number that matches in your description?