The Multiquip 1042604 Housing Volute is a genuine OEM component designed for ST4125D and ST6125D clean water submersible pumps. As a direct OEM replacement, this part is sourced and validated to match the original specification, ensuring correct installation without guesswork. Confirmed fitment covers the ST4125D and ST6125D submersible pump models. Order with confidence knowing you are getting the exact part engineered for your machine.
Key Features
- OEM-Grade Hydraulic Geometry — Cast to the original volute profile, maintaining the precise internal flow path that the pump was engineered around.
- Drop-In Housing Replacement — Matches all original bolt patterns, inlet dimensions, and discharge port positions for a straightforward swap on the ST4125D and ST6125D.
- Confirmed Submersible Pump Fitment — Validated for Multiquip ST4125D and ST6125D clean water submersible pump models.
- Sustained Pump Output — A structurally sound volute housing maintains consistent water velocity and pressure conversion; a cracked or worn housing causes flow loss and pump cavitation.
- Corrosion-Resistant Construction — Built to withstand continuous submersion and the demands of clean water transfer applications without premature degradation.
The volute housing is the outer casing that surrounds the pump's impeller and is responsible for converting the high-velocity flow generated by the impeller into usable pressure. As water exits the spinning impeller, the volute's gradually expanding spiral chamber slows the flow and builds discharge pressure — this is the core mechanism that moves water up and out of the pump. When the volute housing cracks, erodes, or becomes damaged, the pump loses the ability to maintain that pressure conversion, resulting in reduced flow rate, poor pump performance, and potential motor overload as the unit works harder to compensate.
Part Details
| Part Number | 1042604 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Housing Volute |
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.
