The Wacker Neuson Oil Seal is a genuine OEM component designed for the HSH700 and HSH650 hydronic surface heaters. Sourced directly from Wacker Neuson, this seal matches the exact material grade and dimensional spec of the original part installed at the factory. It is a direct replacement for the HSH700 and HSH650 series, ensuring a correct, leak-free fit without rework or adaptation. Keep your heater running at peak efficiency with a part built to the same standard as the one it replaces.
Key Features
- OEM-Grade Sealing Material — Manufactured to Wacker Neuson's original material and compression specification, maintaining the integrity of the fluid circuit in demanding heating applications.
- Drop-In Replacement — Matches the original seal profile exactly, seating correctly in the designated bore without trimming, shimming, or modification.
- Confirmed Fitment — Verified for the HSH700 and HSH650 hydronic surface heater series.
- Prevents Fluid Loss — A worn or failed oil seal allows fluid to escape the sealed circuit, degrading heater performance and potentially causing damage to surrounding components; this genuine replacement restores the barrier.
- Fluid System Integrity — In a hydronic heating system, a correctly functioning seal is critical to maintaining safe operating pressure and preventing contamination of the heat-transfer fluid.
An oil seal creates a dynamic or static barrier between rotating or mating components, preventing fluid from migrating out of the sealed cavity and contaminants from entering. In a hydronic surface heater like the HSH700 and HSH650, the oil seal plays a key role in maintaining the closed-loop integrity of the heat-transfer circuit. When an oil seal deteriorates — through heat cycling, age, or mechanical wear — it loses its compression and allows fluid to bypass the seal face, leading to leaks, pressure loss, and accelerated wear on adjacent components.
Part Details
| Part Number | 5000176544 |
|---|---|
| Old Part Number | 0176544 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oil Seal |
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.
