The Wacker Neuson Inner Rotor is a genuine OEM component designed for the LTN4Y and LTN5Y series light towers, including variants such as the LTN4Y 60 Hz, LTN4Y SA, LTN4Y RH, LTN5Y, LTN5Yp, LTN5Yp HD, LTN5Ypa, LTN5Ypk, LTN5Y SA, LTN5Y CH, and LTN5Y UK. Sourced directly from Wacker Neuson, this is the same inner rotor that ships in new machines — no guesswork on fit or compatibility. It is the correct choice for restoring generator output performance and ensuring the electrical system operates as intended across the full range of supported LTN4Y and LTN5Y configurations.
Key Features
- Genuine OEM Magnetic Tolerancing — Manufactured to Wacker Neuson's exact pole geometry and magnetic flux specifications, ensuring consistent voltage generation rather than an approximation of output performance.
- Direct Drop-In Installation — Matches the original rotor shaft interface and housing dimensions of supported LTN4Y and LTN5Y generators, so the part seats correctly without shimming or machining.
- Broad LTN Series Coverage — Compatible with over a dozen LTN4Y and LTN5Y model variants, including 60 Hz, 120V/60Hz, SA, RH, CH, UK, HD, and pk configurations.
- Restores Clean Electrical Output — A worn or damaged inner rotor causes erratic voltage, flickering tower lights, or total loss of generation; this replacement brings the machine back to stable, rated output.
- Electrical Safety Compliance — As a core generating component, using the correct OEM rotor maintains the integrity of the machine's electrical circuit and reduces the risk of downstream damage to connected equipment or wiring.
The inner rotor is the rotating core of the generator's magnetic circuit. As it spins inside the stator windings, its magnetic field induces the alternating current that powers the light tower's mast and any connected loads. When the inner rotor degrades — through bearing wear, physical impact, or demagnetization — the generator loses the ability to sustain stable voltage output, which can cause lights to dim, flicker, or fail entirely. Replacing a worn inner rotor with a genuine OEM part restores the magnetic field strength and rotational balance the generator was designed around, bringing output back to specification.
Part Details
| Part Number | 5100075915 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Inner Rotor |
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 |
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.
