The Wacker Neuson Plug is a genuine OEM component designed for the APT4S and APT4T series water pumps, including standard and cold weather configurations. As a factory-sourced part, it is built to the exact specifications of the original, ensuring a direct, hassle-free replacement in the field. This plug fits across the full APT4S and APT4T lineup — covering surge brake, electric brake, and cold weather variants — so you can order with confidence knowing this is the correct part for your machine.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's original material and dimensional spec, ensuring the plug seals ports and openings as intended with no risk of leakage or pressure loss.
- Drop-In Replacement — Threads and dimensions match the original installation point exactly, so the part seats and torques correctly without any rework or adaptation.
- Broad APT Series Coverage — Fits the APT4S Pump with Skid and APT4T Pump across surge brake, electric brake, and cold weather variants, covering both standard and cold weather series in one part number.
- Maintains System Pressure and Fluid Containment — A properly functioning plug keeps the pump circuit closed at unused ports, preventing fluid ingress, contamination, or pressure bleed-off that can degrade pump performance.
A plug serves as a sealing fastener used to close off ports, openings, or passageways within a pump or fluid system that are not actively connected to a line or fitting. By blocking these access points, the plug maintains the integrity of the fluid circuit, preventing leaks, contamination, and pressure loss. A damaged, missing, or improperly fitted plug can allow fluid to escape or debris to enter the system, leading to pump inefficiency or component damage over time.
Part Details
| Part Number | 5200020144 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Plug |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| 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.
