The Wacker Neuson 5200020075 Nut is a genuine OEM fastener designed for the APT4T and APT4S series submersible pumps. This includes surge brake, electric brake, and cold weather variants across both pump families. As a factory-sourced component, the 5200020075 meets the exact material and dimensional specifications of the original part, ensuring a correct, secure fit every time. Whether you are servicing an APT4T Pump with Surge Brake, an APT4T Pump with Electric Brake, or a cold weather-configured APT4S Pump with Skid, this is the correct replacement nut for the job.
Key Features
- Genuine OEM Fastener Integrity — Manufactured to the exact thread pitch, material grade, and torque specification required by the APT4T and APT4S pump assemblies, ensuring secure and lasting fastening.
- Drop-In Replacement — Matches the original hardware dimensions exactly, threading directly into the existing mating surface without adjustment or rework.
- Broad APT Series Fitment — Confirmed fitment across APT4T surge brake, APT4T electric brake, APT4S with Skid, and all corresponding cold weather variants.
- Structural Reliability Under Pump Operation — A correctly torqued fastener keeps critical pump components properly seated during operation; a loose or incorrect nut can lead to misalignment, vibration damage, or fluid pathway compromise.
- Fuel System and Assembly Safety Compliance — Using the correct OEM nut ensures the assembly meets Wacker Neuson's designed clamping load, which is especially important in wet and cold weather pump environments where connection integrity is critical.
A nut in a pump assembly may seem like a minor component, but it plays a direct role in holding structural and mechanical connections under the stress of continuous pump operation. On the APT4T and APT4S submersible pumps, fasteners like this nut secure key assembly points that must remain tight through vibration, pressure cycling, and exposure to water and varying temperatures. When a nut wears, strips, or fails, it can allow components to shift or loosen, leading to accelerated wear on surrounding parts or a loss of assembly integrity. Replacing it promptly with the correct OEM part keeps the pump performing as designed.
Part Details
| Part Number | 5200020075 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| 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.
