The Wacker Neuson Lock Nut is a genuine OEM fastener designed for the E1100, E3000 ES, E5000, and CH5000 series ground heaters, hydronic surface heaters, and cross heaters. As a direct OEM replacement, this lock nut is manufactured to the same specifications as the original hardware, ensuring a correct, secure fit within the assembly it serves. It is compatible across a wide range of Wacker Neuson heating equipment configurations, including diesel-fired, gas-fired, and generator-equipped variants. Confirm your model number and machine number before ordering to ensure this is the correct fastener for your application.
Key Features
- Genuine OEM Fastener Integrity — Manufactured to the original thread pitch and torque specification, maintaining the clamping force and vibration resistance the heater assembly requires.
- Drop-In Hardware Replacement — Matches the original lock nut position and thread engagement exactly, requiring only standard hand tools for installation.
- Broad Heating Equipment Fitment — Compatible with E1100, E3000 ES, E5000, and CH5000 series units across diesel-fired, gas-fired, and generator-equipped configurations.
- Prevents Fastener Loosening Under Heat Cycling — Lock nut design resists backing off during the repeated thermal expansion and contraction cycles typical in ground and surface heating equipment.
- Supports Correct Assembly Torque — A worn or missing lock nut can allow critical components to shift or loosen during operation; replacing it promptly restores proper hardware security throughout the machine.
A lock nut is a self-locking fastener engineered to resist loosening caused by vibration, thermal cycling, and mechanical stress. In heating equipment such as ground heaters and hydronic surface heaters, components are subject to continuous heat-induced expansion and contraction, which places constant stress on threaded connections. When a lock nut wears out or fails, fastener joints can work loose, potentially allowing components to shift out of alignment or become a safety concern during operation. Replacing a damaged or missing lock nut with the correct OEM part restores the mechanical integrity of the assembly and keeps the heater running as intended.
Part Details
| Part Number | 5000172433 |
|---|---|
| Old Part Number | 0172433 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E5000 Ground Heater, 12kw Gen, Diesel | E5000 | 5000620899, 5000620897, 5000620898 |
| E1100 GROUND HEATER | E1100 | 5000620172, 5000620244, 5200001676 |
| E3000 ES Hydronic Surface Heater | E3000ES | 5000620968, 5000620967 |
| E3000 ES Ground Heater, 3kW Gen | E3000 | 5100017801 |
| Cross Heater with oil burner | CH5000 | 5000620240, 5000620242 |
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.
