The Wacker Neuson 5200021775 is a genuine OEM Float Switch Wiring Harness designed for the APT4, APT6, and APT8 series submersible pump units, including trailer-mounted and skid-mounted configurations in both standard and Cold Weather variants. As a factory-sourced component, the 5200021775 is built to the exact electrical specifications of the original harness, ensuring a correct, plug-in connection to the float switch circuit without modification. This harness covers a wide range of APT pump configurations — surge brake, electric brake, and skid-mount models — making it the correct service part for nearly the entire APT product family.
Key Features
- OEM Electrical Specification: — Manufactured to the original wire gauge, connector type, and insulation rating required by the APT pump float switch circuit — not a generic harness adapted to fit.
- Direct Connector Match: — Plugs directly into the existing float switch and control circuit terminals, preserving the integrity of the pump's automatic level-sensing system.
- Broad APT Series Coverage: — Compatible with APT4T, APT4S, APT6T, APT6S, APT8T, and APT8S pump models, including Cold Weather variants with surge brake and electric brake configurations.
- Protects Automatic Pump Function: — A correctly functioning harness ensures the float switch can signal the pump to start and stop based on water level — a worn or damaged harness causes erratic cycling or complete failure of automatic operation.
- Electrical Safety Compliance: — As part of the pump's level-sensing and automatic shutoff circuit, a genuine OEM harness maintains the electrical integrity critical to safe pump operation in wet environments.
The float switch wiring harness is the electrical link between the float switch and the pump's control system. When the float rises or falls with the water level, the harness carries the resulting signal that tells the pump to activate or shut down — this automatic control is essential for preventing dry-run damage and overflow on job sites. A cracked, corroded, or damaged harness interrupts that signal path, causing the pump to run continuously, fail to start, or cycle unpredictably, which can lead to premature pump wear or uncontrolled water on site.
Part Details
| Part Number | 5200021775 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Float Switch Wiring Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT6T Pump, Surge Brake, Cold Weather | APT6T CW | 5200019794, 5200019795 |
| APT6T Pump, Surge Brake | APT6T | 5200019646, 5200019647 |
| APT6S Pump w/Skid | APT6S | 5200018982 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT8T Pump, Electric Brake, Cold Weather | APT8T CW | 5200019797, 5200019796 |
| APT4T Pump, Electric Brake, Cold Weather | APT4T CW | 5200019793, 5200019792 |
| APT8T Pump, Surge Brake | APT8T | 5200019648, 5200019649 |
| APT8S Pump w/Skid | APT8S | 5200018987 |
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
| APT6S Pump w/Skid, Cold Weather | APT6S CW | 5200019799 |
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.
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