The Wacker Neuson 5100040908 is a genuine OEM Adapter Fitting designed for the APT4T and APT4S submersible pump series, including Surge Brake, Electric Brake, and Cold Weather configurations. As a direct OEM replacement, this fitting is manufactured to the exact specifications required by Wacker Neuson, ensuring a proper connection within the pump's fluid handling system. It is confirmed to fit the APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, APT4S Pump with Skid, and their respective Cold Weather variants. When you need a part that matches original build quality and fits without guesswork, the 5100040908 delivers.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original thread and dimensional tolerances, ensuring leak-free sealing under pump operating pressures.
- Direct-Fit Replacement — Threads and port sizing match the original fitting exactly, allowing straightforward installation into the existing pump plumbing without reworking connections.
- Broad APT4T and APT4S Compatibility — Fits Surge Brake, Electric Brake, and Cold Weather pump variants across both the APT4T and APT4S model families.
- Maintains Fluid System Integrity — A correctly seated adapter fitting keeps pump discharge connections sealed and flow paths aligned; a damaged or incorrect fitting risks pressure loss and fluid leaks.
- Verified Part Number — Part number 5100040908 cross-references directly to all listed APT4T and APT4S configurations, giving you confidence before the part ships.
An adapter fitting serves as a threaded transition point within a pump's plumbing circuit, connecting fluid lines or components that may differ in thread type, size, or orientation. In submersible pump applications like the APT4T and APT4S series, this fitting ensures a secure, pressure-rated junction between the pump body and discharge hardware. When an adapter fitting cracks, strips, or corrodes, the connection can weep or fail entirely, interrupting pump output and potentially introducing air into the system — replacing it promptly with a correctly rated OEM part restores full pump performance.
Part Details
| Part Number | 5100040908 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Adapter Fitting |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
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.
