The Wacker Neuson is a genuine OEM Lock Nut M18 Hex designed for the LTN6, LTW6K, LTW8K, and LTW20Z series light towers. Sourced directly from Wacker Neuson, this fastener delivers the exact thread specification and locking geometry required for secure assembly on your machine. It fits a wide range of LTN and LTW light tower configurations, including 50 Hz and 60 Hz variants, cold-weather builds, and custom fleet units. When you need an exact-match replacement, part number is the correct OEM specification for these light tower families.
Key Features
- Genuine OEM Thread Spec — Manufactured to the exact M18 hex profile specified by Wacker Neuson, ensuring full thread engagement and correct torque retention in the original fastener location.
- Positive Locking Design — The lock nut's integral locking feature resists vibration-induced loosening, which is critical on light towers subject to engine vibration and transport movement.
- Broad LTN and LTW Compatibility — Confirmed fitment across LTN6C, LTN6L, LTN6K, LTN8K, LTW6K, LTW8K, and LTW20Z series light towers, spanning multiple engine configurations and frequency ratings.
- Drop-In Replacement — Matches the original M18 hex dimensions exactly, seating and torquing to spec without rework or modification to surrounding hardware.
- Structural Integrity Under Load — A properly fastened lock nut keeps tower components securely joined during operation and transport; a worn or missing nut can allow critical joints to work loose over time.
A lock nut is a threaded fastener engineered to resist loosening under vibration and dynamic load. Unlike a standard nut, it incorporates a locking mechanism — such as a distorted thread profile or nylon insert — that maintains clamping force even as the assembly flexes or vibrates during use. On a light tower, fasteners like the 5000172920 are used to secure structural and mechanical joints that must remain tight through engine operation, mast deployment, and road transport. A missing, stripped, or improperly torqued lock nut can allow joints to shift, creating play in the assembly and potentially compromising the structural connection it was designed to hold.
Part Details
| Part Number | 5000172920 |
|---|---|
| Old Part Number | 0172920 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Nut M18 Hex |
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 |
| LTN8K LIGHT TOWER, COLD WEATHER, Tier 4F | LTN8K-LT | 5200004093 |
| LTN6L 50 Hz CE- RACKED | LTN6LE | 5200019142, 5200019143, 5200019141 |
| Light Tower | LTV6K | 5100039424 |
| Tower/Winch Assembly | Tower/Winch Assembly | 5100039515 |
| 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.
