This shows as a proper replacement motor for my current Marathon Electric motor, but the specs on the Marathon show 56Z as the frame size. What is the difference than 56Z and 48Y as this replacement motor shows? Thanks.

Question

This shows as a proper replacement motor for my current Marathon Electric motor, but the specs on the Marathon show 56Z as the frame size.  What is the difference than 56Z and 48Y as this replacement motor shows?  Thanks.

Hector F. · Accepted Answer

The diameter of the motor is wider on the 56 frame then the 48. This would mean that the 48 may not rest on the base/stand if there is currently one. You would need to locate a 56 frame version or adjust accordingly with a base/stand.

Question Regarding: Century® (A.O. Smith) 2.0 HP Up-Rate Pool Pump Motor - USQ1202 Square Flange | 48Y Frame | Single Speed

This shows as a proper replacement motor for my current Marathon Electric motor, but the specs on the Marathon show 56Z as the frame size. What is the difference than 56Z and 48Y as this replacement motor shows? Thanks.