The Multiquip 51121 Threaded Impeller is a genuine OEM component designed for MQ600H, MQ600HTP, MQ600HTB, MQ600TD80-TLRP, MQ600TD80-TLRB, RW3010, and RW1810 series equipment. As a direct Multiquip OEM part, 51121 is manufactured to the same specification as the original, ensuring a correct, drop-in fit with no guesswork on compatibility. This impeller is a critical wear component in the pump assembly, and replacing it with a genuine part helps restore full flow performance to your equipment. DHS Equipment stocks this part to keep your Multiquip trash pumps and rollers running at peak output.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original specification, with the threaded interface machined to match the exact tolerancing of the pump shaft for a secure, wobble-free connection.
- Threaded Shaft Interface — The threaded design locks directly onto the pump shaft without adapters or modifications, maintaining proper impeller-to-volute clearance for consistent hydraulic performance.
- Broad Multiquip Fitment — Confirmed fit for MQ600H, MQ600HTP, MQ600HTB, MQ600TD80-TLRP, MQ600TD80-TLRB, RW3010, and RW1810 models; always verify your model code before ordering.
- Restores Full Flow Capacity — A worn or damaged impeller causes a measurable drop in discharge volume and head pressure; replacing with part 51121 brings pump output back to rated performance.
- Corrosion and Wear Resistance — Built from materials selected for contact with abrasive slurries and debris-laden water, which is the operating environment these trash pump impellers are specifically designed for.
The impeller is the rotating core of a centrifugal pump assembly. It spins at high speed to transfer kinetic energy to the fluid, drawing water and suspended solids in through the pump inlet and discharging them under pressure through the outlet. In a trash pump application, the impeller must handle abrasive debris without losing efficiency, making material quality and dimensional accuracy critical. When an impeller wears down, becomes cracked, or loses its thread engagement on the shaft, the pump will produce noticeably reduced flow, increased cavitation noise, and may eventually fail to prime altogether. Replacing it promptly with the correct OEM part restores the pump to its designed discharge rate and suction lift capability.
Part Details
| Part Number | 51121 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Threaded Impeller |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | MQ600HTP |
| Trash Pumps | MQ600HTB |
| Trash Pumps | MQ600H |
| Trash Pumps | MQ600TD80-TLRP |
| Trash Pumps | MQ600TD80-TLRB |
| Rollers | RW3010 |
| Rollers | RW1810 |
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.
Multiquip