The Wacker Neuson is a genuine OEM Hexagon Nut designed for the E1250S, E1250P, HSH380S, and HSH380B hydronic surface heater series. As a factory-sourced component, it meets the exact material and dimensional standards specified for these machines, ensuring a correct fit every time. This nut is compatible across multiple configurations including LP/NG, Diesel, Standard, Basic, and Premium variants within the E1250 and HSH380 families. Keep a spare on hand to support routine maintenance and keep your hydronic heating equipment operating at full capacity.
Key Features
- Genuine OEM Material Grade — Manufactured to the exact hardness and thread specification required for secure fastening in hydronic heater assemblies, where thermal cycling demands consistent clamping integrity.
- Direct-Fit Replacement — Matches the original thread form and drive size, installing directly in place of the factory nut with no reworking of mating hardware.
- Broad Fitment Across E1250 and HSH380 Series — Verified for E1250S, E1250P, HSH380S, and HSH380B models in Standard, Basic, and Premium configurations running LP/NG or Diesel fuel.
- Thermal and Vibration Resistance — Correct fastener grade ensures the joint stays torqued through repeated heat-up and cool-down cycles, preventing loosening that can lead to leaks or component misalignment.
- Verified Part Number Traceability — Sourced directly under Wacker Neuson part number 5200015000, eliminating guesswork when cross-referencing against service manuals and parts diagrams.
A hexagon nut is a standard threaded fastener used to clamp and secure components within an assembly. In hydronic surface heaters like the E1250 and HSH380 series, fasteners play a critical role in maintaining sealed connections and structural integrity across plumbing, panel, and heat-exchanger mounting points that are subject to continuous thermal expansion and contraction. When a fastener fails — through corrosion, stripping, or fatigue — it can allow joints to work loose, resulting in fluid leaks, reduced heating efficiency, or component damage that requires far more extensive repairs.
Part Details
| Part Number | 5200015000 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagon Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| E12540B | E1250B | 5200012353, 5200007613 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359, 5200007614 |
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.
