The Wacker Neuson Lock Nut M3 Hex Zinc is a genuine OEM fastener designed for the LTW Series light towers and HI Series indirect air heaters. As a direct factory replacement, this zinc-plated M3 hex lock nut matches the original hardware specification exactly — no guesswork, no substitutions. It fits a wide range of Wacker Neuson LTW6K, LTW8K, LTW20Z-1, and LTW20Z-3 light tower configurations, including standard, cold weather, and custom Tier 4i builds, as well as HI260, HI1000, and HSH380 series heaters. Sourcing part number directly ensures you're reinstalling the correct fastener and maintaining the integrity of the assembly it secures.
Key Features
- Genuine OEM Zinc Plating — Factory-applied zinc coating provides corrosion resistance suited to the outdoor and cold-weather operating environments these machines are built for.
- M3 Hex Profile for Tool-Ready Installation — Standard M3 hex geometry means the nut seats and torques with common hand tools, fitting precisely into the existing threaded hardware pattern.
- Broad LTW and HI Series Compatibility — Confirmed fit across LTW6K, LTW8K, LTW20Z-1, LTW20Z-3, HI260, HI1000, and HSH380 model families, spanning standard, cold weather, and Tier 4i variants.
- Locking Design Prevents Fastener Loosening — The lock nut construction resists vibration-induced back-off, keeping panels, brackets, and components securely fastened during extended generator and heater operation.
- Exact Part Number Match — Ordering by Wacker Neuson part number 5000180533 confirms you receive the correct size and grade — critical when replacing small fasteners that are easy to substitute incorrectly.
A lock nut is a threaded fastener engineered to resist loosening under vibration and dynamic loads. Unlike a standard nut, its locking feature — whether through a nylon insert, prevailing torque, or deformed thread profile — creates friction that holds the nut in position even when the equipment is running or being transported. On light towers and portable heaters, where engine vibration, road transit, and frequent setup cycles are constant factors, a failed or missing lock nut can allow panels, electrical enclosures, or mechanical components to shift and become unsecured. Replacing a worn or lost lock nut promptly with the correct OEM fastener restores the assembly to its intended clamping load and keeps connected components properly aligned and protected.
Part Details
| Part Number | 5000180533 |
|---|---|
| Old Part Number | 0180533 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Nut M3 Hex Zinc |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI260 HEATER,OIL WITH TANK | HI260 | 5200018503, 5200018504 |
| LTW20Z-1, LIGHT TOWER 60Hz, ISUZU, CUSTOM, T4i | LTW20Z1 | 5000620842, 5000620375, 5200004205, 5200004096, 5100051572, 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, 5200004095, 5200023190, 5200024871 |
| LTW20Z-3, LIGHT TOWER 60HZ, ISUZU TIER 4i | LTW20Z3 | 5000620376, 5000620843, 5200003583, 5200004097, 5200014325, 5200014327, 5200023192, 5200023604, 5200014329 |
| LTW20Z3-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z3-V S | 5200018566, 5200018558, 5200018562, 5200023196, 5100015094, 5100022126 |
| LTW20Z1-V S LIGHT TOWER, COLD WEATHER, T4i | LTW20Z1-V S | 5200018565, 5200018557, 5200018561, 5200024875, 5200023195, 5100015093, 5100022125 |
| 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 |
| 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 |
| HI1000 Indirect Air Heater, Diesel w/Tank | HI1000 | 5200011232, 5200011233, 5200011231, 5100049274, 5100049273 |
| HI1000 Indirect Air Heater, DGM, Electric Break | HI1000DGM | 5200011234, 5200011235, 5100049275, 5100049276 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359 |
| HSH 380S-Natural Gas/Propane, w/Generator | HSH380S | 5200012370, 5200012371 |
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.
