The Wacker Neuson 5200021808 Adapter is a genuine OEM component designed for the APT4S and APT4T series submersible pumps. Sourced directly through Wacker Neuson's parts program, this adapter ensures an exact match to the original specification without any guesswork on fitment. It is compatible across multiple APT4S and APT4T configurations, including skid-mounted, cold weather, electric brake, and surge brake variants. When you need a direct OEM replacement for your APT4 series pump, part number 5200021808 is the correct choice.
Key Features
- Genuine OEM Construction: — Manufactured to Wacker Neuson's original design tolerances, ensuring the adapter seats and seals correctly within the pump assembly without improvisation.
- Direct Drop-In Replacement: — Matches the original mounting interface, allowing straightforward installation into the APT4S and APT4T pump housings without rework.
- Broad APT4 Series Compatibility: — Fits APT4S skid-mounted and cold weather units, plus APT4T electric brake, surge brake, and cold weather configurations — one part number covering the full APT4 family.
- Maintains Pump Flow Integrity: — A correctly fitted adapter keeps fluid pathways properly aligned; a worn or incorrect adapter can introduce leaks or misalignment that degrades pump output and accelerates wear on connected components.
- Verified OEM Part Number: — Ordering by Wacker Neuson part number 5200021808 eliminates the risk of receiving a non-fitting substitute — critical when working with multi-configuration pump setups.
An adapter in a submersible pump assembly serves as a precision interface between two connected components, allowing dissimilar fittings, ports, or housings to mate correctly and maintain a leak-free fluid path. In the APT4 series, the adapter ensures proper alignment and connection within the pump's hydraulic circuit, which is essential for consistent flow performance and pressure management. When an adapter is damaged, corroded, or improperly fitted, it can cause fluid bypass, connection failure, or accelerated wear on adjacent seals and fittings — making prompt replacement with a correct OEM part the right call.
Part Details
| Part Number | 5200021808 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Adapter |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
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.
