The Wacker Neuson Volute is a genuine OEM component designed for PT4A and PT4A(I) series trash pumps. As a direct factory-sourced replacement, it is manufactured to the same specifications as the original part, ensuring a correct, consistent fit in your machine. Cross-reference part number against your serial number to confirm compatibility with your specific unit before ordering.
Key Features
- Genuine OEM Hydraulic Integrity — Manufactured by Wacker Neuson to original flow-path geometry, ensuring the volute channels fluid at the correct velocity and pressure for full pump output.
- Direct Drop-In Replacement — Matches the original bolt pattern and housing interface of the PT4A and PT4A(I) pumps, fitting straight into the existing pump casing without rework.
- Confirmed Fitment for PT4A Series — Verified for PT4A and PT4A(I) trash pumps across multiple build configurations; always confirm your machine's serial number before ordering.
- Sustained Pump Flow Performance — A correctly seated volute maintains discharge pressure and flow rate; a cracked or worn volute causes loss of prime, reduced output, and uneven fluid handling.
- Genuine Part Traceability — Sourced directly through the Wacker Neuson OEM parts network, so you receive a part with verified provenance backed by the manufacturer.
The volute is the spiral-shaped housing that surrounds the impeller inside a centrifugal or trash pump. Its job is to collect the fluid thrown outward by the spinning impeller and gradually convert that high-velocity flow into pressure as it moves toward the discharge outlet. The precise shape of the volute is critical — even minor damage, cracking, or wear to its inner surfaces disrupts the flow path, which leads to pressure drop, loss of prime, and reduced pumping capacity. Replacing a damaged volute with a genuine OEM part restores the original hydraulic balance and gets the pump back to its rated performance.
Part Details
| Part Number | 5100044587 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Volute |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT4A | PT4A | 5100042217, 5100042604 |
| PT4A(I) | PT4A(I) | 5100042615 |
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.
