The Wacker Neuson Washer is a genuine OEM component designed for the HSH and E-series hydronic surface heater and ground heater line. This OEM part is sourced directly through Wacker Neuson's authorized parts program, ensuring it meets the exact specifications of the original hardware used in production. Verified fitment covers the HSH700, HSH650, E2200, and E3000 series machines — including standard, lift bail, electric start, and generator-equipped configurations. When a worn or missing washer is all that stands between your heater and a return to full operation, using the correct OEM part keeps the assembly seated and torqued as intended.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to the exact thickness, inner diameter, and outer diameter spec of the original production washer, ensuring correct load distribution across fastened joints.
- Direct Drop-In Hardware — Installs in place of the original without reworking mating surfaces or fastener hardware; seats flush against the original clamping faces.
- Broad HSH and E-Series Coverage — Confirmed fit across the HSH700, HSH650, E2200, and E3000 ground heater and hydronic surface heater families, including generator-equipped and lift bail variants.
- Structural Integrity Under Thermal Cycling — Hydronic heater assemblies expand and contract with heat; a correctly spec'd washer maintains clamping force and prevents joint loosening over repeated heat cycles.
- Single-Part Fix for Common Service Needs — Lost, corroded, or deformed washers are a frequent finding during heater service; having the correct OEM piece on hand keeps the repair clean and complete.
A washer distributes the clamping load of a fastener — bolt, screw, or nut — across a wider surface area, preventing the fastener head from pulling through or embedding into softer material and protecting the mating surface from damage. In hydronic surface heaters and ground heaters like the E2200 and E3000 series, washers appear throughout the assembly at panel mounts, plumbing connections, and structural joints where consistent clamping force is critical to leak-free and vibration-resistant operation. When a washer is missing, undersized, or deformed, the fastener loses its holding power, joints can work loose under thermal cycling, and what starts as a minor hardware issue can escalate into a misaligned component or a slow fluid leak.
Part Details
| Part Number | 5000181591 |
|---|---|
| Old Part Number | 0181591 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| E2200 Hydronic Surface Heater, 5 kW generator | E2200 | 5000620216, 5000620226, 5100017448, 5100017449 |
| E3000 ES Hydronic Surface Heater | E3000ES | 5000620968 |
| HSH650 | HSH650 | 5000620991 |
| E3000 Ground Heater, 3kW Gen, TC | E3000 | 5100017807, 5100017809, 5100017806, 5100017808, 5100017810, 5100017811, 5100025046, 5100017801, 5100025045 |
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.
