Replacement Motor for Century HST225

I’m looking for a replacement motor for my Century HST225.  Can you recommend a new motor?  Also, one of the posts recommended changing the seal and the diffuser.  Definitely want to replace the seal but wanted more info regarding the diffuser and how much that would cost.  Thanks!

We have a couple of options that can replace the Century HST225. The single-speed option is model UST1202. Click Here to View the UST1202 motor.

The most energy-efficient option (required in California) is part number ECM27CU. Click Here to View the ECM27CU Motor

If you know the make and model of the pump side, we can recommend the correct replacement seals.