The Wacker Neuson 5200021658 is a genuine OEM Coupling Kit designed for the APT8T and APT8S series submersible pumps. This includes coverage across Surge Brake, Electric Brake, and Cold Weather configurations, making it the correct replacement for the full APT8T and APT8S lineup. As a genuine Wacker Neuson part, the 5200021658 is built to the same specification as the original component installed at the factory, ensuring a direct, trouble-free installation. Verify your model number against the fitment list before ordering to confirm compatibility.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original coupling tolerances and material spec, ensuring the same mechanical engagement and torque transfer as the part it replaces.
- Direct-Fit Replacement — Engineered to connect to existing pump drive components without rework, matching original mounting geometry and interface dimensions.
- Broad APT8 Series Coverage — Fits the APT8T (Surge Brake and Electric Brake) and APT8S (with Skid) models, including all Cold Weather variants within both families.
- Maintains Drive Efficiency — A worn or failed coupling can cause slippage, vibration, and loss of power transfer between motor and pump; a properly functioning coupling keeps pumping output consistent and smooth.
- Correct for Cold Weather Configurations — Verified fit for Cold Weather-spec APT8T and APT8S units, so operators running pumps in cold-climate applications get the right part the first time.
The coupling on an APT8 series submersible pump connects the motor shaft to the pump impeller assembly, transmitting rotational force to move water. When the coupling wears or fails, that connection becomes unreliable — resulting in reduced flow, unusual vibration, or a complete loss of pumping function. Replacing the coupling with the correct OEM part restores the original mechanical link between motor and impeller, bringing the pump back to its designed performance level.
Part Details
| Part Number | 5200021658 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Coupling Kit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT8T Pump, Surge Brake | APT8T | 5200019648, 5200019649 |
| APT8T Pump, Surge Brake, Cold Weather | APT8T CW | 5200019796, 5200019797 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
| APT8S Pump w/Skid | APT8S | 5200018987 |
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.
