The Wacker Neuson Cap Plug is a genuine OEM component designed for the HX 60 Heat Exchanger, HX200 Heat Exchanger, and Pureheat Hydronic Heater series — including oil burner, gas burner, and diesel configurations. As a direct factory replacement, this cap plug carries the same specifications as the original part fitted at the time of manufacture. It is compatible across the Pureheat and HX families, making it a reliable service item for contractors and rental fleets running Wacker Neuson hydronic heating equipment. Confirm your model number before ordering to ensure correct fitment.
Key Features
- Genuine OEM Material Match — Manufactured to the same material grade and dimensional tolerances as the original, ensuring a proper seal and correct port closure in hydronic heating circuits.
- Direct Drop-In Replacement — Installs into the same port position as the factory-fitted plug with no rework to surrounding fittings or housings required.
- Broad Heater Family Coverage — Fits the HX 60 (230 V), HX200, and Pureheat Hydronic Heater series across oil burner, gas burner, and diesel variants.
- Fluid Containment Integrity — A correctly seated cap plug prevents coolant or fluid loss at unused ports, maintaining system pressure and preventing contamination ingress into the hydronic circuit.
- Fuel and Fluid System Safety — In hydronic heating systems, an improperly seated or missing cap plug can result in fluid leaks near heat sources; using the correct OEM-spec plug supports safe system operation.
A cap plug seals unused or inactive ports within a hydronic heating system, preventing coolant fluid from escaping and stopping debris or contaminants from entering the circuit. In heat exchanger and hydronic heater applications, maintaining closed-loop fluid integrity is critical — even a small leak at an open port can lead to pressure loss, reduced heating output, or damage to internal components. A worn, missing, or incorrect plug compromises the system's ability to circulate fluid efficiently and may create hazardous conditions near burner assemblies.
Part Details
| Part Number | 5000168536 |
|---|---|
| Old Part Number | 0168536 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cap Plug |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HX 60 Heat Exchanger, 230 V | HX60 | 5000620251 |
| HX200 Heat Exchanger | HX200 | 5000620430 |
| Pureheat Hydronic Heater, Oil Burner | Pureheat | 5000620245, 5000620246, 5000620190 |
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.
