The Wacker Neuson Lock Nut is a genuine OEM Lock Nut designed for E3000 Ground Heaters, E3000 Hydronic Surface Heaters, E3000 ES series units, and HI 770 XHD Indirect Air Heaters. As a factory-sourced component, it is manufactured to the exact specifications required by Wacker Neuson for these climate and heating equipment families. This Lock Nut is a direct-fit replacement that installs exactly as the original, ensuring a secure, vibration-resistant connection within the assembly. If you're servicing an E3000, E3000 ES, or HI 770 XHD unit, verifying part number against your machine's serial number is the surest way to confirm correct fitment.
Key Features
- Genuine OEM Holding Force: — Sourced directly from Wacker Neuson, this Lock Nut delivers the torque retention and thread engagement spec required for secure fastening in heating and climate equipment.
- Drop-In Replacement: — Matches the original thread pitch and dimensions exactly, so it installs in the same position without modification to surrounding hardware or structure.
- Broad Fitment Across Heating Families: — Compatible with a wide range of E3000, E3000 ES, E5000, and HI 770 XHD configurations, including ground heaters, hydronic surface heaters, and indirect air heaters.
- Vibration and Loosening Resistance: — A Lock Nut is specifically engineered to resist self-loosening under operational vibration — critical on portable heating units that are regularly transported and repositioned on job sites.
- Fuel and Climate System Integrity: — Proper fastener torque retention helps maintain the structural and fluid integrity of heating system assemblies; a failed or missing Lock Nut can lead to component misalignment or system leaks.
A Lock Nut is a self-locking fastener designed to resist loosening caused by vibration, thermal cycling, and mechanical stress. Unlike a standard nut, its locking feature — whether a nylon insert, distorted thread, or flanged profile — grips the mating bolt or stud and maintains clamping force even under repeated movement or temperature fluctuation. On portable ground heaters and indirect air heaters like the E3000 and HI 770 XHD, where units are regularly transported, set up, and exposed to cyclic heating and cooling, a Lock Nut that has failed or backed off can compromise the integrity of the fastened joint — potentially affecting burner assemblies, fuel components, or structural connections. Replacing a worn or missing Lock Nut promptly keeps the assembly properly torqued and the equipment operating as intended.
Part Details
| Part Number | 5000180089 |
|---|---|
| Old Part Number | 0180089 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E3000 Hydronic Surface Heater with generator | E3000 | 5000620219, 5000620679, 5000620158, 5000620678, 5200014677, 5200004952, 5100017807, 5100017809, 5200014678, 5200014679, 5200014720, 5100017806, 5100017808, 5200014721, 5100017810, 5100017811, 5100025046, 5100055568, 5100056441, 5100017801, 5100056440, 5100025045 |
| HI 770 XHD Indirect Air Heater, Diesel, 2x12 | Arctic Bear XHD | 5000620676 |
| HI 770 XHD Indirect Air Heater, Diesel, 1x16 | HI770XHD | 5000620183, 5200003814, 5200004934, 5100049894 |
| E5000 GROUND HEATER, W/GAS BURNER | E5000 | 5000620898, 5000620897, 5000620899 |
| E3000 ES Hydronic Surface Heater | E3000ES | 5000620968, 5000620967 |
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.
