Verified specifications
| Horsepower | 2 HP |
|---|---|
| Total HP (THP) | 2.0 THP (2 HP × 1.00 SF) |
| Service factor | 1.00 |
| Speed | 3450 RPM |
| Voltage | 230/115V, single-phase, 60 Hz |
| Full-load amps | 10.0/20.0A |
| Frame | 48Y (thru-bolt) |
| Enclosure | Open drip-proof (ODP) |
| Shaft | Stainless steel (SS suffix), threaded |
48Y fitment: thru-bolt mount — above-ground pools, spas, and jetted tubs. Two-speed models (like the BN51) run the pump at high speed for filtering cycles and low speed for continuous circulation.
Shaft seal: replace the pump shaft seal whenever the motor is changed — a leaking seal is the #1 killer of new pool pump motors.
The SS suffix denotes the stainless-steel shaft — preferred for corrosive pool environments.
Confirming the right replacement
Before we quote, compare these fields on your failed motor's nameplate. If any of them differ, send us a photo of the nameplate and we'll match it exactly rather than guessing:
- Full model number — including any suffix letters
- HP, RPM, and voltage
- Frame size (e.g. 284T) and enclosure (TEFC, ODP, etc.)
- Full-load amps
Other A.O. Smith models
- More A.O. Smith modelsBrowse every A.O. Smith model page we quote
- A.O. Smith BN35V11.5 HP 48Y pool/spa motor, 1.5 THP
- A.O. Smith BN512/0.25 HP two-speed 48Y pool/spa motor
Need a A.O. Smith BN40SS?
Send the nameplate off your failed unit. We'll confirm the match and quote the BN40SS or a verified equivalent with availability and lead time.
Quote this motor