The Wacker Neuson Switch is a genuine OEM component designed for the HI 770 XHD series indirect-fired diesel air heaters, including Arctic Bear XHD and Arctic Bear XHD NS configurations. Sourced directly from Wacker Neuson, this switch is the exact part specified for these units, ensuring a direct, hassle-free installation. Compatible across multiple HI 770 XHD machine configurations — including 1x16, 1x20, and 2x12 duct arrangements — this part covers the full range of Extra Heavy Duty Air Heater variants in the lineup.
Key Features
- Genuine OEM Electrical Specification — Manufactured to the exact switching capacity and circuit rating required by the HI 770 XHD heater's control system, ensuring correct operation without voltage mismatch or contact failure.
- Direct Drop-In Replacement — Matches the original mounting configuration and wiring connections found in the HI 770 XHD platform, so installation follows the same procedure as the factory-fitted component.
- Broad HI 770 XHD Coverage — Fits Arctic Bear XHD, Arctic Bear XHD NS, and standard HI 770 XHD indirect-fired diesel heater units across multiple duct configurations and machine numbers.
- Restores Reliable Ignition and Control Circuit Function — A faulty switch can prevent the heater from starting or cause intermittent shutdowns in cold-weather operations; replacing it with the correct OEM part restores full control circuit integrity.
- Critical for Cold-Weather Job Site Continuity — Indirect air heaters are essential for winter concrete curing, freeze protection, and enclosed-space heating; a verified OEM switch keeps the control system performing as engineered when temperatures drop.
The switch in a Wacker Neuson HI 770 XHD indirect-fired air heater is a key control-circuit component responsible for initiating and managing the heater's operational cycle. It signals the control system to start or stop burner activity, and a worn or failed switch can result in the unit failing to ignite, cycling erratically, or shutting down unexpectedly — a serious problem when the heater is being relied upon in freezing conditions. Replacing a damaged switch with the correct Wacker Neuson 5000166724 ensures the control circuit operates exactly as designed, maintaining safe and consistent heat output across the unit's full operating range.
Part Details
| Part Number | 5000166724 |
|---|---|
| Old Part Number | 0166724 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 770 XHD Indirect Air Heater, Diesel, 2x12 | Arctic Bear XHD | 5000620676 |
| HI 770 XHD Indirect Air Heater, Diesel, 1x16 | HI770XHD | 5000620183, 5200003814, 5200004934, 5100049894 |
| HI770XHD Indirect Heater | Arctic Bear XHD NS | 5000620690 |
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.
