The Wacker Neuson Lock Washer is a genuine OEM component designed for HSH350 hydronic surface heaters and E3000 series machines. Sourced directly from Wacker Neuson, this lock washer meets the same specifications as the original hardware installed at the factory. It is a confirmed fit for HSH350 and E3000 models, making it a straightforward, no-guesswork replacement when servicing these units.
Key Features
- Genuine OEM Hardware Grade — Manufactured to the exact material hardness and dimensional tolerancing required to maintain proper clamping force in fastened assemblies on Wacker Neuson equipment.
- Direct Drop-In Replacement — Matches the original washer profile and inner diameter, seating correctly against mating fasteners without modification.
- Confirmed Fitment — Compatible with HSH350 hydronic surface heaters and E3000 series machines, covering multiple production variants within each model line.
- Prevents Fastener Loosening — The locking design resists vibration-induced back-off, helping fastened joints stay torqued and secure through repeated heating and cooling cycles or operational vibration.
- Fuel and Heat System Integrity — In heating and fluid-circuit assemblies, a failed or missing lock washer can allow critical fasteners to loosen, risking leaks or component separation — using the correct OEM part maintains the integrity of those connections.
A lock washer is a small but essential piece of hardware placed under a nut or bolt head to prevent the fastener from loosening due to vibration, thermal expansion and contraction, or dynamic loads. By biting into both the fastener and the mating surface, it resists rotational back-off that would otherwise allow connections to work loose over time. In equipment such as hydronic surface heaters and portable power units — where joints may be exposed to heat cycling, fluid pressure, and mechanical vibration — a worn, flattened, or missing lock washer can lead to fastener failure, fluid leaks, or structural looseness that compromises safe operation.
Part Details
| Part Number | 5000173922 |
|---|---|
| Old Part Number | 0173922 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydronic Surface Heater | HSH350 | 5000620254, 5200001677 |
| E3000 | E3000 | 5100055568, 5100056441, 5100056440 |
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.
