The Wacker Neuson Coupling is a genuine OEM component designed for the E3000, E2200, E1100, HSH700, HSH650, HSH350, HP252, and Pureheat series hydronic surface heaters and ground heaters. As a direct factory replacement, this coupling is sourced to the original specification and fits the full range of Wacker Neuson hydronic heating equipment — including generator-equipped, lift bail, and ES variants. Whether you're servicing a ground heater on a winter concrete pour or maintaining a hydronic surface heater on a large-scale cold-weather project, part number ensures you're installing the correct component for the application. Cross-reference your model number before ordering to confirm compatibility across this broad fitment range.
Key Features
- Genuine OEM Construction: — Manufactured to Wacker Neuson's original specification, ensuring the coupling maintains the correct torque transfer characteristics and dimensional fit required for hydronic heater drive and fluid systems.
- Direct Drop-In Replacement: — Engineered to align with existing mounting points and connection interfaces on supported models, allowing straightforward installation without modification to surrounding components.
- Broad Hydronic Heater Compatibility: — Fits E3000, E2200, E1100, HSH700, HSH650, HSH350, HP252, and Pureheat model families, covering ground heater, hydronic surface heater, generator-equipped, lift bail, and ES configurations.
- Maintains Fluid or Drive System Integrity: — A worn or damaged coupling can cause misalignment, vibration, or loss of drive in the heater's pump or motor circuit — replacing it promptly restores correct system operation and protects connected components.
- Verified Wacker Neuson Part Number: — Part number 5000168678 is the authorised reference for this coupling across the supported model range, giving you confidence you're ordering the right part the first time.
A coupling in a hydronic heater connects two rotating or fluid-carrying components — typically linking the pump motor to the pump shaft or joining fluid circuit sections — transmitting torque or sealing flow between them. When the coupling is intact, power transfers smoothly and the fluid circuit operates at the pressure and flow rate the system requires to heat evenly. A cracked, worn, or failed coupling can introduce vibration, fluid leaks, or a complete loss of pump function, leaving the heater unable to circulate heated fluid through hoses and blankets on the job.
Part Details
| Part Number | 5000168678 |
|---|---|
| Old Part Number | 0168678 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Coupling |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E3000 Hydronic Surface Heater with generator | E3000 | 5000620219, 5000620679, 5000620158, 5000620678, 5200004952, 5100017806, 5100017808, 5100017810, 5100017801 |
| HSH700 | HSH700G | 5000620243 |
| E2200 GROUND HEATER, W/ LIFT BAIL | E2200 | 5000620215, 5000620176, 5000620216, 5000620226, 5100017448, 5100017449 |
| Hydronic Surface Heater | HSH350 | 5000620254, 5200001677 |
| HP252 | HP252 | 5000620249 |
| Pureheat Hydronic Heater, Oil Burner | Pureheat | 5000620245, 5000620246, 5000620190, 5000620220 |
| E3000 ES Hydronic Surface Heater | E3000ES | 5000620968, 5000620967 |
| E1100 GROUND HEATER | E1100 | 5000620172, 5000620244, 5200001676 |
| 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.
