The Wacker Neuson 5200021768 Flange is a genuine OEM component designed for the APT4S and APT4T series self-priming trash pumps. As a direct OEM replacement, this flange is manufactured to the same specifications as the original part, ensuring a correct, trouble-free installation on compatible pump configurations including standard, electric brake, surge brake, and cold weather variants. Confirmed fitment covers the APT4S Pump with Skid, APT4S Pump with Skid Cold Weather, APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, APT4T Pump with Electric Brake Cold Weather, and APT4T Pump with Surge Brake Cold Weather. Using the correct Wacker Neuson 5200021768 ensures the flange seats and seals as intended, keeping your pump running at full capacity.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original material and dimensional tolerances, ensuring the flange delivers the correct sealing surface and structural integrity for pump service.
- Direct Drop-In Replacement — Designed to match the original mounting pattern and interface, so the 5200021768 installs in the same location as the factory part with no rework needed.
- Broad APT4 Series Compatibility — Fits multiple APT4S and APT4T configurations including standard, surge brake, electric brake, and cold weather variants across the pump lineup.
- Maintains Pump Flow Integrity — A correctly seated flange ensures leak-free connections at the pump port; a damaged or improperly fitted flange can cause pressure loss and reduce discharge performance.
- Verified Part Number — Order with confidence: 5200021768 is the exact Wacker Neuson OEM part number for this application, cross-referenced to the APT4S and APT4T pump families.
A flange serves as a structural and sealing connection point on a pump assembly, joining pipe sections, hose fittings, or pump housings so that fluid moves through the system without leakage. On the APT4S and APT4T trash pumps, the flange maintains a secure, pressure-rated interface between pump components, supporting consistent flow and suction performance. When a flange becomes cracked, corroded, or improperly seated, the pump can lose prime, develop leaks, or fail to build adequate discharge pressure — making timely replacement essential to keeping the pump operational.
Part Details
| Part Number | 5200021768 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flange |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4T Pump, Electric Brake, Cold Weather | APT4T CW | 5200019793, 5200019792 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| 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.
