The Wacker Neuson Plug is a genuine OEM plug designed for the APT4S and APT4T pump series, including standard and cold weather configurations. As a factory-sourced component, it delivers the exact material grade, thread specification, and dimensional fit called out in the original equipment design. This plug is confirmed compatible across six APT pump configurations — covering both surge brake and electric brake variants, as well as skid-mounted and cold weather builds.
Key Features
- OEM-Grade Sealing Material — Manufactured to the original material and thread specification, ensuring a leak-free seal under the pressure and fluid conditions these pumps operate in.
- Drop-In Replacement — Matches the original port size and thread pitch exactly, threading directly into the same location as the factory-installed plug without rework or adaptation.
- Broad APT Series Coverage — Fits APT4S and APT4T pumps across surge brake, electric brake, skid-mounted, and cold weather variants, covering six distinct machine configurations.
- Maintains Fluid System Integrity — A failed or missing plug can allow fluid loss or contamination, disrupting pump operation. This OEM replacement restores the closed system and keeps the pump running as intended.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, part number 5200020145 carries the same quality assurance as the original build component.
A plug in a pump system serves as a threaded closure for ports, passages, or openings that are not in active use or need to be sealed off during normal operation. It prevents fluid from escaping and keeps contaminants from entering the hydraulic or fluid circuit. When a plug is damaged, cross-threaded, or missing entirely, the result can be fluid leakage, pressure loss, or internal contamination — all of which can lead to pump malfunction or accelerated wear on surrounding components.
Part Details
| Part Number | 5200020145 |
|---|---|
| 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.
