The Multiquip 1042643 Impeller is a genuine OEM component designed for ST4125D and ST6125D submersible clean water pumps. As a direct OEM replacement, it is manufactured to the same specifications as the original part, ensuring consistent hydraulic performance and correct clearances within the pump housing. This impeller is the correct fit for MQ submersible pump models ST4125D and ST6125D, making it a straightforward service solution when pump output drops or the existing impeller shows wear or damage. DHS Equipment stocks this part to help you get your pump back to full working capacity quickly.
Key Features
- OEM Hydraulic Geometry — Cast to the original flow profile, this impeller maintains the designed water displacement rate and pressure output for your submersible pump.
- Drop-In Service Replacement — Engineered to the same bore, vane count, and housing clearance as the original, so it seats correctly without rework during reinstallation.
- Confirmed Fitment — Verified for Multiquip ST4125D and ST6125D clean water submersible pump models.
- Restores Full Pump Capacity — A worn or damaged impeller causes reduced flow volume and loss of lift head; replacing it with a correctly spec'd OEM part returns the pump to its rated performance.
- Genuine Multiquip OEM Part — Sourced directly through authorized Multiquip supply channels under part number 1042643, ensuring you receive the correct component for this pump family.
The impeller is the rotating core of a centrifugal pump — it spins at high speed to transfer energy from the motor into the water, generating the flow and pressure that move fluid through the discharge line. In a submersible clean water pump like the ST4125D and ST6125D, the impeller operates fully submerged and must maintain tight dimensional tolerances to deliver consistent volume and lift. When an impeller wears, chips, or becomes clogged, the pump loses flow rate and struggles to reach rated head pressure, reducing its ability to move water efficiently. Replacing the impeller with a genuine OEM part restores the hydraulic balance of the pump and protects the motor from working harder than designed.
Part Details
| Part Number | 1042643 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Impeller |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Submersible Pumps Clean Water | ST4125D |
| MQ Submersible Pumps Clean Water | ST6125D |
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.
