The Wacker Neuson Screw Plug is a genuine OEM component designed for the MDP3 series water pumps. Sourced directly from Wacker Neuson, this is the same part installed at the factory — ensuring an exact fit with no guesswork on compatibility. It is confirmed for use on the MDP3 pump models, including CE and CN variants.
Key Features
- Genuine OEM Seal Integrity — Manufactured to Wacker Neuson's original thread and material specifications, ensuring the plug seats and seals correctly without fluid bypass or weeping.
- Direct Drop-In Replacement — Threads directly into the original port on the MDP3 pump housing, matching the existing thread pitch and torque profile for a straightforward swap.
- Confirmed MDP3 Fitment — Verified for MDP3 CE and MDP3 CN water pump variants, so you can order with confidence.
- Leak-Free Operation — A correctly seated screw plug maintains system pressure and prevents fluid loss, keeping the pump running at full rated output.
- Fluid System Safety — A damaged or missing screw plug can result in uncontrolled fluid release; replacing with the correct OEM part restores proper containment and safe operation.
A screw plug is a threaded closure used to seal an access port, drain opening, or unused fluid passage within a pump housing. On the MDP3 water pump, it maintains a pressure-tight barrier at its designated port — preventing fluid from escaping and contaminants from entering the pump internals. When a screw plug becomes damaged, stripped, or begins to weep fluid, replacing it promptly with the correct part is essential to maintaining pump efficiency and preventing larger service issues.
Part Details
| Part Number | 5000409422 |
|---|---|
| Old Part Number | 0409422 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Screw Plug |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| MDP3 | MDP3-CE | 5100056324 |
| Water Pump | MDP3-CN | 5000630438 |
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.
