The Pentair Fan Motor with Acorn Nut Kit (474323Z) is the OEM replacement fan motor assembly for the UltraTemp Heat Pump Model 140 and Model 140HC. This kit includes the fan motor and acorn nut hardware required for a complete motor replacement on these specific UltraTemp models.
⚠️ IMPORTANT: KIT LISTING — MULTIPLE COMPONENTS INCLUDED
This listing is a kit, not a single component. It includes the fan motor and acorn nut hardware as a complete replacement set for the UltraTemp 140 and 140HC heat pumps.
⚠️ IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED
Heat pump fan motor components involve high-voltage electrical connections. Electrical heat pump components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service high-voltage components without proper certification.
The fan motor drives the condenser fan on the UltraTemp heat pump, moving air across the heat exchanger coil to facilitate the refrigerant cycle. A failed or degraded fan motor will reduce heat transfer efficiency and can cause the unit to shut down on high-pressure fault. This kit provides the complete motor and acorn nut fastener set needed to restore proper airflow and heat pump operation. Confirm your UltraTemp model is the 140 or 140HC before ordering — this kit is not compatible with other UltraTemp model numbers.
Specifications
| Pentair Part Number |
474323Z |
| Part Name |
Fan Motor with Acorn Nut Kit |
| Quantity Included |
Kit (fan motor + acorn nut hardware) |
| Compatible Models |
UltraTemp Model 140 & Model 140HC only |
Fits Into
| Brand |
Equipment Line |
Model / Part Number |
Notes |
| Pentair |
UltraTemp Heat Pump — UltraTemp Series |
140 |
Model 140 & 140HC only |
| Pentair |
UltraTemp Heat Pump — UltraTemp Series |
140HC |
Model 140 & 140HC only |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Pro Tip
Before ordering, locate the model number label on your UltraTemp unit — typically found on the side panel of the cabinet. This kit is confirmed for the Model 140 and 140HC only. If your unit is a different UltraTemp model number, this fan motor kit will not be the correct replacement. Have a licensed pool or HVAC technician perform the motor swap; the fan motor connects directly to the unit's electrical system and must be properly torqued and wired to manufacturer specification to avoid damage to the refrigerant circuit or electrical components.
