The Wacker Neuson Retaining Ring is a genuine OEM component designed for the HP252 and Pureheat Hydronic Heater series, including the Oil Burner and Gas Burner variants. As a direct OEM replacement, this retaining ring is manufactured to the exact specifications of the original part, ensuring a correct fit within the assembly without the need for modification. Wacker Neuson's genuine OEM designation confirms this part is sourced through authorized supply channels, giving you confidence that it meets the tolerances required for proper function. If you're servicing an HP252 or a Pureheat Hydronic Heater unit, verifying part number against your machine's parts diagram is the most reliable way to confirm compatibility.
Key Features
- Genuine OEM Retention Integrity — Manufactured to the original groove-depth and diameter tolerances required to securely hold components in position within the heater assembly.
- Drop-In Replacement — Matches the original retaining ring profile for straightforward installation into the existing groove with standard snap-ring tooling.
- Broad Pureheat Series Fitment — Compatible with the HP252, Pureheat Hydronic Heater Oil Burner, and Pureheat Hydronic Heater Gas Burner models.
- Maintains Secure Component Alignment — A properly seated retaining ring keeps critical internal components locked in their correct axial position, preventing unwanted movement during heater operation.
- Fuel System Adjacent — Installation Accuracy Matters — In hydronic heater assemblies, retaining rings are often located near fuel or fluid-handling components; using the correct OEM part ensures the assembly seals and functions as designed.
A retaining ring — sometimes called a snap ring or circlip — is a fastening component that seats into a machined groove on a shaft or inside a bore to hold other parts in their correct axial position. In a hydronic heater like the Pureheat series, retaining rings secure key internal components within the burner or fluid circuit assembly, preventing them from shifting under vibration or thermal expansion during operation. When a retaining ring becomes worn, deformed, or breaks, the components it holds can shift out of alignment, leading to improper sealing, component wear, or heater malfunction — making timely replacement essential to keeping the unit running correctly.
Part Details
| Part Number | 5000168589 |
|---|---|
| Old Part Number | 0168589 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Retaining Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HP252 | HP252 | 5000620249 |
| Pureheat Hydronic Heater, Oil Burner | Pureheat | 5000620245, 5000620246 |
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.
