The Wacker Neuson Plug is a genuine OEM component designed for the APT4S and APT4T series water pumps, including standard, cold weather, surge brake, and electric brake configurations. As a factory-sourced part, it is manufactured to the exact specifications required by these pump models, ensuring a correct, trouble-free installation every time. This plug fits across the full APT4S and APT4T lineup, covering both skid-mounted and cold weather variants.
Key Features
- Exact OEM Sealing Spec — Manufactured to Wacker Neuson's precise thread form and material requirements, ensuring a leak-free seal in the pump housing or port it serves.
- Direct Drop-In Fit — Threads directly into the designated port without reworking or adapting, making replacement straightforward in the field or shop.
- Broad APT Series Coverage — Compatible with APT4S (with skid) and APT4T (surge brake, electric brake) pump models, including all cold weather variants.
- Maintains Fluid Integrity — A correctly seated plug prevents fluid loss and contamination ingress, keeping pump performance consistent across demanding job conditions.
- System Pressure Retention — A failed or missing plug can cause pressure loss or fluid leaks that disrupt pump operation; this OEM part restores the sealed system as intended.
A plug in a water pump assembly serves as a port closure, sealing off an opening in the pump housing, manifold, or fluid circuit that is not in active use or requires capping after service. It maintains internal pressure and prevents fluid from escaping or contaminants from entering the system. When a plug is cracked, stripped, or missing, the pump can lose prime, leak fluid, or suffer contamination that leads to accelerated wear and unreliable output.
Part Details
| Part Number | 5200019832 |
|---|---|
| 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.
