The Multiquip 020S500UL004 is a genuine OEM Impeller Nut designed for Multiquip submersible pump models ST2047, ST2038P, ST2040T, ST2037, ST2037F, and ST2040TF. As a factory-sourced component, it meets the exact specifications Multiquip requires to keep the impeller properly secured within the pump housing. If you're servicing any of these ST-series submersible units, verifying you have the correct 020S500UL004 is essential before starting the job.
Key Features
- Genuine OEM Torque Retention: — Manufactured to Multiquip's exact thread pitch and material spec, ensuring the nut seats and holds the impeller under continuous pump load without backing off.
- Direct-Fit Replacement: — Installs directly onto the impeller shaft of compatible ST-series submersible pumps with no reworking of surrounding components required.
- Broad ST-Series Compatibility: — Fits ST2047, ST2038P, ST2040T, ST2037, ST2037F, and ST2040TF submersible pump models in a single part number.
- Preserves Impeller Alignment: — A correctly torqued impeller nut keeps the impeller centered within the volute, maintaining pump efficiency and preventing premature wear on the impeller and seal faces.
- Correct Material Grade: — Engineered from a material grade suited to continuous submersible operation, resisting corrosion and loosening in wet, debris-laden environments where these pumps typically operate.
The impeller nut secures the impeller to the pump shaft, holding it in the correct axial position so the pump can move water effectively through the volute. If the nut loosens or fails, the impeller can shift or spin freely on the shaft, causing a significant drop in flow rate, increased vibration, and accelerated damage to the shaft, seal, and pump housing. Replacing a worn or damaged impeller nut with the correct OEM part — Multiquip 020S500UL004 — restores the mechanical integrity of the impeller assembly and prevents cascading damage to surrounding pump components.
Have questions about fitment or need help confirming the right part for your ST-series submersible pump? Contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 020S500UL004 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Impeller Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST2047 |
| Submersible Pumps | ST2038P |
| Submersible Pumps | ST2040T |
| Submersible Pumps | ST2037 |
| Submersible Pumps | ST2037F |
| Submersible Pumps | ST2040TF |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
