The Wacker Neuson Toggle Switch is a genuine OEM component designed for the HI 770 XHD series indirect diesel air heaters, including Arctic Bear XHD and Extra Heavy Duty Air Heater configurations. As a direct OEM replacement, this toggle switch is sourced through Wacker Neuson's authorized parts program, ensuring it meets the exact specifications of the original component installed at the factory. Confirmed fitment spans multiple HI 770 XHD machine configurations, making the correct part whether you're servicing a 1x16, 1x20, or 2x12 duct layout variant.
Key Features
- Genuine OEM Electrical Specification — Manufactured to the original switching rating and contact configuration required by the HI 770 XHD control circuit — no guessing on voltage compatibility.
- Direct Drop-In Replacement — Matches the original mounting footprint and terminal layout, allowing straightforward installation into the existing switch panel position.
- Broad HI 770 XHD Fitment — Compatible across Arctic Bear XHD, Arctic Bear XHD NS, and Extra Heavy Duty Air Heater variants of the HI 770 XHD platform.
- Restores Full Heater Control — A failed or intermittent toggle switch can prevent the heater from powering on or cycling correctly; replacing it restores predictable, operator-controlled ignition and shutdown.
- Safety-Critical Electrical Component — Correct switching capacity matters in diesel heating applications; using a properly rated OEM switch supports safe start/stop operation in cold-weather jobsite environments.
The toggle switch in a Wacker Neuson HI 770 XHD indirect air heater serves as a primary operator control, allowing the user to power the unit on or off and — depending on the circuit — activate specific operating modes. In diesel indirect heaters, the switch sits within a low-voltage control circuit that triggers the burner, blower, or both. When the toggle switch wears out, develops a loose connection, or fails entirely, the heater may become unresponsive to operator input, fail to ignite, or shut down unexpectedly — leaving a crew without heat when it's needed most. Replacing part 5000166776 with a genuine Wacker Neuson switch restores proper electrical continuity and operator control.
Part Details
| Part Number | 5000166776 |
|---|---|
| Old Part Number | 0166776 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Toggle 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.
