The Wacker Neuson Locknut is a genuine OEM Locknut designed for the LTN4Y and LTN5Y series light towers, including the LTN4Y, LTN4Y RH, LTN4Y SA, LTN5Y, LTN5Yp, LTN5Ypa, LTN5Ypk, LTN5Yp HD, LTN5Y CH, LTN5Y SA, and LTN5Y UK. Sourced directly from Wacker Neuson, this part carries the same specification as the hardware installed at the factory, ensuring a correct fit without guesswork. With compatibility spanning multiple voltage and frequency variants — including 60 Hz, 120V/60Hz, and international configurations — this single part number covers a wide range of LTN-series machines. Keep a spare on hand to handle field repairs quickly and confidently.
Key Features
- Genuine OEM Fastener Integrity — Manufactured to Wacker Neuson's exact thread form and hardness specification, so torque loads are held securely without stripping or backing off under vibration.
- Drop-In Replacement — Matches the original thread pitch and dimensions precisely, threading into place without chasing or reworking the mating component.
- Broad LTN-Series Coverage — A single part number fits the full LTN4Y and LTN5Y family, including SA, RH, HD, CH, UK, 60 Hz, and 120V/60Hz variants.
- Vibration-Resistant Locking Design — The locking feature prevents loosening during the sustained vibration typical of generator-powered light tower operation, keeping critical assemblies securely fastened.
- Verified Part Number Traceability — Ordered as Wacker Neuson 5100007177, this part is traceable to the original equipment bill of materials, eliminating the risk of sourcing the wrong fastener for your machine.
A locknut is a fastener engineered with a built-in resistance mechanism — typically a nylon insert or a deformed thread profile — that prevents the nut from loosening under vibration, torque cycling, or dynamic load. On light towers like the LTN4Y and LTN5Y series, components such as the mast assembly, generator mounting, and chassis structure are exposed to continuous engine vibration during operation, making a standard nut prone to backing off over time. When a locknut fails or is missing, the joint it secures can work loose, leading to misalignment, excessive wear on surrounding components, or unsafe operating conditions. Replacing a worn or damaged locknut with the correct OEM part restores the clamping integrity the assembly was designed around.
Part Details
| Part Number | 5100007177 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Locknut |
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.
