The Wacker Neuson Hexagonal Head Cap Screw is a genuine OEM fastener designed for the E5000 Ground Heater and Pureheat Hydronic Heater series. Sourced directly from Wacker Neuson, this part carries the same specifications as the hardware installed at the factory, ensuring a proper fit within the assembly. Confirmed fitment spans diesel and gas-fired Pureheat Hydronic Heaters as well as the E5000 Ground Heater in its diesel and 12kW generator configurations. When replacing worn or damaged hardware on your heating equipment, using the correct OEM fastener protects thread integrity and maintains a secure, leak-free assembly.
Key Features
- Genuine OEM Fastener Grade — Meets Wacker Neuson's specified tensile and torque requirements for this fastener position, so clamping force stays within design tolerances.
- Correct Thread Engagement — Hexagonal head profile and thread specification match the original hardware, allowing direct installation with standard tooling and no rework to the mating components.
- Broad Heater Fitment — Compatible with E5000 Ground Heaters (diesel and 12kW generator variants) and Pureheat Hydronic Heaters (oil burner, gas burner, and diesel configurations).
- Structural Integrity at Operating Temperatures — Heating equipment fasteners are subject to thermal cycling; using a properly rated OEM screw maintains clamp load and prevents loosening over repeated heat-and-cool cycles.
- Fuel and Fluid System Safety — In heating appliances, incorrectly specified fasteners at fuel line, burner, or heat exchanger connection points can compromise sealed joints; the correct OEM part keeps those connections secure.
A hexagonal head cap screw is a threaded fastener used to clamp two or more components together within a mechanical or fluid-carrying assembly. In ground heaters and hydronic heating units, cap screws like this one are used throughout the burner housing, heat exchanger mounting, and enclosure structure to keep critical joints tight and properly aligned. When a cap screw is stripped, corroded, or torqued incorrectly, the joint it holds can shift or loosen, potentially allowing fuel or heated fluid to escape and reducing the overall efficiency of the heating system. Replacing damaged hardware with the correct OEM specification fastener restores the designed clamp load and keeps the assembly performing as intended.
Part Details
| Part Number | 5000178785 |
|---|---|
| Old Part Number | 0178785 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagonal Head Cap Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E5000 GROUND HEATER, W/DIESEL BURNER | E5000 | 5000620897, 5000620899 |
| Pureheat Hydronic Heater, Oil Burner | Pureheat | 5000620245, 5000620246, 5000620190 |
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.
