The Wacker Neuson Lock Washer is a genuine OEM component designed for the HSH700 and HSH650 hydronic surface heaters. As a factory-sourced part, it meets the exact specifications required by Wacker Neuson for these machines, ensuring a correct, secure fit every time. The is a straightforward service part that supports proper fastener retention across the heater assembly.
Key Features
- Genuine OEM Material Spec — Sourced directly from Wacker Neuson, this lock washer is manufactured to the correct hardness and dimensional tolerances required for consistent clamping force in the HSH heater assembly.
- Drop-In Hardware Replacement — Matches the original fastener stack-up exactly, seating without modification against mating hardware in the HSH700 and HSH650.
- Confirmed HSH Series Fitment — Verified for the HSH700 and HSH650 hydronic surface heaters, making it easy to source the right part for either model.
- Prevents Fastener Backing Out — A correctly functioning lock washer maintains clamping load under vibration and thermal cycling, keeping critical connections tight throughout the heating season.
- Supports Scheduled Maintenance — Replacing lock washers during service intervals is a low-cost step that protects higher-value components from loosening or premature wear.
A lock washer is a hardened fastening component installed beneath a bolt or nut to resist loosening caused by vibration, thermal expansion, and contraction. In a hydronic surface heater like the HSH700 and HSH650, where the machine undergoes repeated heat cycles and operational stress, maintaining secure fastener tension is essential to keeping connections intact and the unit running safely. A worn, flattened, or missing lock washer allows fasteners to back off over time, which can lead to loose assemblies, potential leaks, or component damage.
Part Details
| Part Number | 5000176565 |
|---|---|
| Old Part Number | 0176565 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| HSH650 | HSH650 | 5000620991 |
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.
