
Hayward
Hayward UST1252 A.O. Smith 2.5 HP Round Flange 56J Up Rate Motor - UST1252
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Part Number
UST1252
Guaranteed to Fit These Models (1)
Details
The A.O. Smith 2.5 HP Round Flange 56J Up Rate Motor (UST1252) is the powerhouse behind your Hayward Super II Pump SP3000 Series, driving the impeller to circulate water and keep your pool clean and clear. Over time, these motors can experience wear and tear. Common failure points include worn-out bearings, damaged windings due to overheating or power surges, or seal failures that allow water to ingress and damage the electrical components. Running the pump dry is also a major contributor to premature motor failure.
If this motor fails, you'll likely notice a significant reduction or complete loss of water circulation. This means your pool filter won't be able to do its job, leading to cloudy or even green water due to algae growth. If left unaddressed, a failed motor can also put strain on other components of your pool system. Replacing a faulty motor promptly is crucial to maintaining water quality, preventing further damage, and ensuring your pool remains a safe and enjoyable place.
Specifications
- SKU / Part Number
- UST1252
- Brand
- Hayward
- Primary Model
- SP3000
- Compatible Models
- 1
Parts Diagram
Exploded View · 100%Tap a number for details
Position #? on the full SP3000 exploded diagram.
View Full Diagram →Common Signs You Need This Part
- Pump not running, Motor making humming or grinding noises, No water circulation, Tripped breaker, Overheated motor casing
Pro Tip
When replacing the motor, ensure the new one has the same electrical specifications (voltage, amperage) and physical mounting dimensions as the old one. Double-check that the shaft rotation matches the original motor's direction.



