The Wacker Neuson 5200019922 Knob is a genuine OEM component designed for the APT4T and APT4S pump series, including surge brake, electric brake, and cold weather configurations. As a direct factory replacement, this knob is produced to the same specifications as the original part installed at the time of manufacture. It fits multiple APT4T and APT4S variants, making it a versatile stocking part for operators running mixed fleets of these trailer-mounted pump units. Always confirm the machine model and configuration before ordering to ensure correct application.
Key Features
- Genuine OEM Construction — Manufactured by Wacker Neuson to the same material and dimensional tolerances as the original, ensuring the knob operates with the same tactile response and durability as when the machine left the factory.
- Direct Drop-In Replacement — Engineered to mount exactly as the original, with no reworking of surrounding hardware or panels required during installation.
- Broad APT4T and APT4S Compatibility — Fits surge brake, electric brake, and cold weather variants across both the APT4T and APT4S pump model families.
- Maintains Proper Operator Control — A worn or damaged knob can make adjustments difficult or imprecise; replacing it promptly keeps controls fully functional and easy to operate.
- Verified Part Number — Sourced directly under Wacker Neuson part number 5200019922, so you can order with confidence that you are receiving the correct component for your machine.
The knob serves as the operator interface for a specific control or adjustment point on the APT4T and APT4S trailer pump units. It allows the operator to make settings changes or engage functions without tools, providing a secure grip point on the underlying shaft or fastener it covers. When a knob cracks, breaks, or becomes stripped, it can make that control difficult or impossible to operate correctly, which interrupts workflow and may prevent proper adjustment of the pump system. Replacing a damaged knob with a genuine OEM part restores full, easy access to that control point.
Part Details
| Part Number | 5200019922 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Knob |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| 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.
