The Wacker Neuson 5200021720 is a genuine OEM Wear Plate designed for APT4T and APT4S series self-priming pumps. As a direct factory replacement, this part is manufactured to the same specifications as the original component, ensuring a consistent fit within the pump assembly. Compatible models include the APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, APT4S Pump with Skid, and their respective Cold Weather variants. When it's time to restore your pump to peak operating condition, part number 5200021720 is the correct, no-compromise choice.
Key Features
- Genuine OEM Wear Surface Integrity — Manufactured from the same material grade as the original, maintaining the tight clearances that keep pump output consistent and cavitation-free.
- Drop-In Replacement — Matches the original mounting profile and bolt pattern of APT4T and APT4S pump assemblies, seating correctly against the impeller without rework.
- Broad APT Series Coverage — Fits APT4T Surge Brake, APT4T Electric Brake, APT4S with Skid, and all Cold Weather variants of each, covering the full APT4T and APT4S pump lineup.
- Restores Pumping Efficiency — A worn wear plate allows fluid to bypass the impeller, reducing flow rate and discharge pressure; replacing it promptly brings performance back to spec.
- Verified Part Number — Ordering by Wacker Neuson part number 5200021720 eliminates fitment guesswork and confirms you're receiving the correct component for your exact pump model.
The wear plate sits between the pump impeller and the pump casing, forming a close-tolerance surface that directs fluid efficiently through the volute and out the discharge port. Over time, abrasive solids in the pumped fluid erode this surface, increasing the gap between the impeller and the plate and allowing fluid to recirculate internally rather than being discharged. This internal bypass reduces flow rate, drops discharge pressure, and forces the pump to work harder. Replacing the wear plate restores the original clearance, bringing the pump back to its rated capacity and extending the life of the impeller and casing.
Part Details
| Part Number | 5200021720 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Wear Plate |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
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.
