The Wacker Neuson Spring is a genuine OEM component designed for the LTN4Y and LTN5Y light tower series as well as the APT4S and APT4T portable pump series. Sourced directly from Wacker Neuson, this spring meets the same specifications as the original part installed at the factory, ensuring correct tension, travel, and engagement characteristics. It is a direct-fit replacement compatible across a broad range of configurations within these model families, including cold weather, surge brake, electric brake, and skid-mounted variants. Whether you are servicing a light tower on a night construction site or maintaining a pump trailer, part number keeps your equipment performing as intended.
Key Features
- Correct Spring Rate for the Application — Manufactured to OEM tension and load specifications, so engagement, return force, and cycling behavior match the original design exactly.
- Direct-Fit Installation — Engineered to drop into the same seat and attachment points as the factory spring, with no trimming, bending, or adaptation needed.
- Broad Model Coverage — Compatible with multiple LTN4Y and LTN5Y light tower configurations and APT4S and APT4T pump variants, including cold weather and specialty brake models.
- Genuine Wacker Neuson OEM Quality — Produced to the same material grade and dimensional standards as the part originally shipped with the machine, delivering consistent, repeatable performance across service intervals.
- Preserves Correct Mechanical Function — A fatigued or broken spring can cause erratic actuation, incomplete engagement, or component damage elsewhere in the assembly; replacing it promptly restores proper mechanical behavior.
A spring in this type of equipment serves as a mechanical return or tension element — holding a component in position, returning it after actuation, or maintaining consistent pressure against a mating surface. When a spring weakens, takes a set, or breaks entirely, the mechanism it supports may fail to engage fully, release properly, or hold its position under load. On light towers and portable pump units, this can affect operational reliability and lead to accelerated wear on connected components. Replacing a worn spring with the correct OEM part restores the intended mechanical balance and keeps the assembly functioning within its designed parameters.
Part Details
| Part Number | 5200019919 |
|---|---|
| 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.
