The Wacker Neuson Switch is a genuine OEM Switch designed for the LTN4Y and LTN5Y light tower series as well as the APT4S and APT4T pump series. Sourced directly from Wacker Neuson, this is the same part installed at the factory, ensuring correct electrical specifications and a drop-in fit with no guesswork on compatibility. The covers a wide range of configurations across both light tower and pump product families, including cold weather and special-application variants. If your machine's switch has failed or is showing signs of wear, replacing it with this genuine OEM component restores proper control function and gets your equipment back to work.
Key Features
- Correct Electrical Specification — Genuine OEM construction ensures the switch meets exact voltage and current ratings required by the circuit, preventing control faults or premature failure.
- Direct Drop-In Replacement — Matches the original mounting footprint and connector configuration, so installation is straightforward with no additional hardware or adaptation.
- Broad Fitment Coverage — Compatible with LTN4Y and LTN5Y light tower variants (including 60 Hz, 120V/60Hz, SA, CH, UK, RH, ME, and HD configurations) as well as APT4S and APT4T pump models, including cold weather editions.
- Restores Reliable Machine Control — A functioning switch is essential for starting, stopping, and controlling equipment operation; a failed switch can leave machinery inoperable or create uncontrolled run conditions.
- Electrical Safety Assurance — As a control switch in power equipment, using a verified OEM part ensures proper circuit interruption ratings are maintained, supporting safe shutdown and operation.
- Genuine Wacker Neuson Part — Supplied under part number 5200020121 with full OEM traceability, so you can be confident you are fitting the correct component for your specific machine configuration.
A switch in light tower and pump equipment serves as the primary control interface between the operator and the machine's electrical or engine systems. It completes or interrupts a circuit to initiate startup, shutdown, or mode changes, meaning the entire machine's operability depends on it functioning correctly. When a switch fails — whether through contact wear, moisture ingress, or mechanical damage — the machine may refuse to start, fail to shut down properly, or behave erratically, all of which create both productivity and safety concerns.
Part Details
| Part Number | 5200020121 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| LTN5Yp | LTN5Yp | 5100069549 |
| LTN5Y SA | LTN5Y SA | 5100069548 |
| LTN4Y | LTN4Y ME | 5100069545 |
| LTN4Y 60 Hz | LTN4Y 60Hz | 5100069546 |
| LTN4Y SA | LTN4Y SA | 5100069547 |
| LTN4Y | LTN4Y | 5100073603 |
| LTN5Ypk | LTN5Ypk | 5100077880 |
| LTN4Y RH | LTN4Y RH | 5100077620 |
| LTN5Yp HD | LTN5Yp HD | 5100079429 |
| LTN5Y | LTN5Y | 5100069550 |
| LTN5Ypa | LTN5Ypa | 5100069551 |
| LTN5Y CH | LTN5Y CH | 5100069552 |
| LTN5Y UK | LTN5Y UK | 5100069553 |
| LTN4Y 120V/60Hz | LTN4Y 120V/60Hz | 5100075978 |
| 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.
