The Wacker Neuson Spring is a genuine OEM Spring designed for the LTN4Y and LTN5Y light tower series as well as the APT4S and APT4T pump series. Sourced directly from Wacker Neuson, this part meets the same specifications as the original component installed at the factory, ensuring a correct, drop-in fit across all compatible configurations. It covers a broad range of variants including standard, cold weather, surge brake, and electric brake models within those families. Whether you're servicing a light tower or a pump unit, part number is the authorized replacement to reach for.
Key Features
- Genuine OEM Tension and Geometry — Manufactured to the exact spring rate and dimensions of the original, so deflection and return force behave as the machine was designed to expect.
- Direct Drop-In Replacement — Installs in the same mounting position as the factory part with no rework or modification to surrounding components needed.
- Wide Model Coverage — Compatible with LTN4Y and LTN5Y light tower variants and APT4S and APT4T pump models, including standard, cold weather, surge brake, and electric brake configurations.
- Restores Correct Mechanical Function — A worn or broken spring can cause improper engagement, loose assemblies, or component misalignment; replacing it with 5200020278 restores the intended mechanical response.
- Authorized Wacker Neuson Part — Carries full OEM traceability, giving you confidence that the part has been validated for use in these machines.
A spring serves as a critical mechanical element that stores and releases energy to maintain tension, return a component to its rest position, or hold two parts in proper contact under load. In light tower and pump applications, springs are commonly found in throttle linkages, safety latches, panel closures, and valve assemblies, where consistent spring force is essential to predictable operation. When a spring stretches, fatigues, or breaks, the component it governs may fail to return to position, engage incorrectly, or rattle loose — leading to performance issues or potential mechanical damage elsewhere in the assembly.
Part Details
| Part Number | 5200020278 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Spring |
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.
