The Wacker Neuson Flange Bolt is a genuine OEM fastener designed for the HSH380S, E3000, E2200, E1250S, and E1250P hydronic surface heaters and ground heaters. As a direct OEM replacement, this flange bolt is manufactured to the same specification as the original hardware installed at the factory, ensuring a proper, secure fit in the assemblies where it is used. Wacker Neuson's genuine OEM designation means this part is sourced directly through the manufacturer's authorized supply chain, giving you confidence that matches the correct thread pitch, flange diameter, and material grade for these heating systems. Whether you are servicing a natural gas, propane, or diesel-fueled unit, this bolt covers a wide range of E-series and HSH-series configurations.
Key Features
- Correct Thread and Flange Geometry — Manufactured to OEM specification, this flange bolt delivers the exact thread engagement and integrated bearing surface required to properly clamp and seal critical heater assemblies without distortion or fastener failure.
- Genuine OEM Hardware — Sourced directly through Wacker Neuson's authorized parts supply, part number 5100024265 meets the original material and torque-rating standards set for these hydronic and ground heating systems.
- Broad HSH and E-Series Fitment — Confirmed fitment across HSH380S, HSH380B, E3000, E2200, E1250S, and E1250P models, covering diesel, natural gas, and propane variants with and without integrated generators.
- Structural Integrity Under Thermal Cycling — Heating equipment fasteners are subject to repeated expansion and contraction cycles; using the correct OEM flange bolt maintains clamp load and prevents joint loosening over time.
- Fuel System and Pressure Circuit Safety — On hydronic heaters, improperly rated or mismatched fasteners in pressurized fluid or burner assemblies can create leak paths; this genuine OEM bolt eliminates that risk by meeting the original design parameters.
A flange bolt combines a standard hex bolt with an integrated washer-like flange beneath the head, which distributes clamping load over a wider surface area and helps prevent the fastener from pulling through or damaging the mating component. In hydronic surface heaters and ground heaters, flange bolts are commonly used to secure housings, fluid circuit components, and burner assembly brackets where vibration, thermal cycling, and fluid pressure demand consistent and reliable clamping force. When a flange bolt stretches, corrodes, or is replaced with an incorrect substitute, joint integrity can be compromised, potentially causing fluid leaks, loose assemblies, or misalignment in the heater system.
Part Details
| Part Number | 5100024265 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flange Bolt |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| E3000 Ground Heater, 3kW Gen, TC | E3000 | 5100017807, 5100017809, 5100017806, 5100017808, 5100017810, 5100017811, 5100025046, 5100017801 |
| 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 |
| E2200 GROUND HEATER, 3kW GENERATOR | E2200 | 5100017448, 5100017449 |
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.
