The Wacker Neuson M5 Lock Hex Nut is a genuine OEM fastener designed for the LTN6, LTW6K, LTW8K, and LTW20Z series light towers. As a factory-sourced component, is manufactured to exact thread pitch, hardness, and locking torque specifications, ensuring it performs exactly as the original fastener installed at the factory. This nut fits an extensive range of Wacker Neuson light tower configurations, including 50 Hz and 60 Hz variants, Tier 4 emissions-compliant models, cold-weather builds, and custom fleet units across the LTN6C, LTN6L, LTN6K, LTN8K, LTV6K, LTV8K, LTW6K, LTW8K, and LTW20Z1/Z3 families.
Key Features
- Genuine OEM Locking Thread Integrity — Sourced directly from Wacker Neuson, this M5 lock hex nut meets the original thread engagement and prevailing torque retention standards required for secure fastening in light tower assemblies.
- Direct Drop-In Replacement — Matches the original M5 thread size, hex profile, and locking mechanism, allowing straightforward installation with standard hand tools — no rework or thread chasing needed.
- Broad Light Tower Compatibility — Confirmed fitment across LTN6, LTN8K, LTW6K, LTW8K, LTW20Z1, and LTW20Z3 series light towers, spanning 50 Hz, 60 Hz, cold-weather, Tier 4, and custom fleet configurations.
- Vibration-Resistant Locking Design — The locking feature resists loosening under the engine vibration and generator load cycles that light towers experience during extended field operation, helping maintain structural and electrical panel integrity.
- Electrical Safety Relevance — Fasteners used in generator and lighting panel assemblies must retain proper clamping force; a loose or incorrect nut in these areas can compromise grounding connections or panel cover retention on energized equipment.
An M5 lock hex nut is a small but critical threaded fastener used throughout light tower frames, generator enclosures, mast assemblies, and electrical panel housings. The locking feature — typically a nylon insert or deformed thread profile — prevents the nut from backing off under continuous vibration, which is especially important on equipment that runs for extended hours at a job site. When a locking nut loses its prevailing torque, connections can loosen progressively, leading to rattling panels, misaligned components, or compromised electrical enclosure integrity. Using the correct OEM replacement ensures the fastener maintains its specified clamping force throughout the service life of the assembly.
Part Details
| Part Number | 5000179066 |
|---|---|
| Old Part Number | 0179066 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | M5 Lock Hex Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| LTN6C, CATERPILLAR | LTN6C | 5000620118, 5000620551, 5000620728, 5000620555, 5200004091, 5200022157 |
| LTN6C-P LIGHT TOWER,60 HZ | LTN6C-P | 5000620298 |
| LTN6L, KOHLER (LOMBARDINI) | LTN6L | 5000620117, 5000620121, 5000620727, 5000620550, 5000620552, 5000620119, 5000620120, 5000620553, 5200004090, 5200004768, 5200012438, 5200022990, 5200017094, 5200017095, 5200022155, 5100027056 |
| LTN6L-P LIGHT TOWER,60 HZ | LTN6L-P | 5000620297 |
| LTW20Z-1, LIGHT TOWER 60Hz, ISUZU, CUSTOM, T4i | LTW20Z1 | 5000620842, 5000620375, 5200004205, 5200004096, 5100051571, 5200014324, 5200014326, 5200018239, 5200023191, 5200024872, 5200014328 |
| LTW6K Light Tower, Standard T4 | LTW6K | 5000620372, 5000620840, 5200004094, 5200024870 |
| LTW8K Light Tower, Standard T4 | LTW8K | 5000620374, 5000620841, 5200004204, 5200004095, 5200023190, 5200024871 |
| LTW20Z-3, LIGHT TOWER 60HZ, ISUZU TIER 4i | LTW20Z3 | 5000620376, 5000620843, 5200003583, 5200004097, 5200014325, 5200014327, 5200023192, 5200023604, 5200014329 |
| LTN6K Light Tower | LTN6K | 5000620734, 5200022156, 5200022147 |
| LTN8K, KUBOTA | LTN8K | 5000620893, 5000620939 |
| LTN6L 50 Hz Non CE. Custom | LTC6L | 5000620559 |
| LTN6K LIGHT TOWER, CUSTOM, Tier 4F | LTN6K-LT | 5000620938, 5200004092, 5200004769 |
| LTN6K-V S, KUBOTA, 120/240V | LTN6K-V S | 5200018537, 5200018550, 5200018553, 5200023197 |
| LTW20Z3-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z3-V S | 5200018566, 5200018558, 5200018562, 5200023196, 5100015094, 5100022126 |
| LTN8K-V LIGHT TOWER,60HZ | LTN8K-V | 5200002727, 5200002728 |
| LTW20Z1-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z1-V S | 5200018565, 5200018557, 5200018561, 5200024875, 5200023195, 5100015093, 5100022125 |
| LTN6L-V LIGHT TOWER,50HZ | LTN6L-V | 5200002720, 5200002721, 5200002716, 5200002717, 5200002718, 5200002719, 5200017102, 5200019283 |
| LTN6K-V LIGHT TOWER,60HZ | LTN6K-V | 5200002722, 5200002726 |
| LTW6K-V S Light Tower, Cold Weather T4 | LTW6K-V S | 5200018563, 5200018555, 5200018559, 5200024873 |
| LTW8K-V S Light Tower, Cold Weather T4 | LTW8K-V S | 5200018564, 5200018556, 5200023194, 5200018560, 5200024874, 5100015095, 5100022084 |
| LTN8K LIGHT TOWER, COLD WEATHER, Tier 4F | LTN8K-LT | 5200004093 |
| Light Tower | LTW20Z3-V | 5200012881, 5200012885, 5200012867, 5200022694 |
| Light Tower | LTW6K-V | 5200012864, 5200012868, 5200012882 |
| Light Tower | LTW8K-V | 5200012869, 5200012883, 5200012865 |
| Light Tower | LTW20Z1-V | 5200012880, 5200012884, 5200012866 |
| LTN6L-V S, KOHLER (LOMBARDINI) | LTN6L-V S | 5200018536, 5200018539, 5200018573, 5200018552, 5200023687, 5200023688, 5200023689, 5200018576 |
| LTN8K-V S, KUBOTA, 120/240V | LTN8K-V S | 5200018538, 5200018551, 5200018554, 5200023198 |
| Light Tower | LTV6K | 5100039424 |
| Light cpl. | Light cpl. | 5100039531 |
| Light Tower | LTV8K | 5100039425 |
| Light Tower | LTV6L | 5100039607 |
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.
