The Wacker Neuson Impeller is a genuine OEM component designed for the APT6S and APT6T series pumps. As a direct OEM replacement, this impeller is manufactured to the same specifications as the original, ensuring proper hydraulic performance across all covered variants — including surge brake, electric brake, and cold weather configurations. It is confirmed to fit the APT6S Pump with Skid, APT6T Pump with Surge Brake, APT6T Pump with Electric Brake, and the corresponding cold weather variants of each. When your pump's output drops or flow becomes irregular, the impeller is one of the first components to inspect — and having the correct OEM part on hand gets your equipment back to full capacity fast.
Key Features
- Genuine OEM Hydraulic Precision — Manufactured to the exact blade geometry and balance spec of the original, so the pump moves water at the correct flow rate and pressure without cavitation or efficiency loss.
- Drop-In Replacement — Engineered to the same shaft interface and housing clearance as the factory impeller, allowing direct installation without machining or shimming.
- Broad APT6 Series Coverage — Fits APT6S and APT6T pump models across surge brake, electric brake, and cold weather configurations, covering a wide range of job site setups.
- Restored Pump Output — A worn or damaged impeller causes reduced flow, pressure loss, and overworked motor components; replacing it restores the pump's rated discharge capacity and protects downstream components.
- OEM Sourced and Verified — Part number 5200021727 is confirmed against Wacker Neuson's own parts documentation, so you can order with confidence that this is the correct impeller for your machine.
The impeller is the rotating core of a centrifugal pump — it spins at high speed to impart velocity to the water, converting that energy into flow and pressure as the fluid exits the housing. In the APT6S and APT6T pump family, the impeller must maintain tight clearances within the pump casing to achieve rated discharge performance; even minor wear, erosion from debris, or physical damage to the vanes will reduce efficiency and cause the motor to work harder to compensate. Left unaddressed, a degraded impeller leads to overheating, increased wear on seals and bearings, and ultimately pump failure — making timely replacement with a correctly specified part essential to keeping the unit operational.
Part Details
| Part Number | 5200021727 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Impeller |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT6S Pump w/Skid | APT6S | 5200018982 |
| APT6T Pump, Surge Brake | APT6T | 5200019646, 5200019647 |
| APT6T Pump, Surge Brake, Cold Weather | APT6T CW | 5200019794, 5200019795 |
| APT6S Pump w/Skid, Cold Weather | APT6S CW | 5200019799 |
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.
