The Wacker Neuson Switch is a genuine OEM component designed for the HI 770 XHD indirect-fired diesel air heater series, including Arctic Bear XHD and Arctic Bear XHD NS models. As a direct OEM replacement, this switch is manufactured to the same specifications as the original part and installs without modification into compatible HI 770 XHD units. Confirmed fitment spans multiple machine configurations within the HI 770 XHD family, covering single- and dual-duct diesel heater builds across a range of serial number series.
Key Features
- Genuine OEM Electrical Accuracy — Manufactured to the original switching specification, ensuring correct circuit actuation and consistent voltage handling within the HI 770 XHD heater's control system.
- Direct Drop-In Replacement — Engineered to match the original mounting footprint and wiring connections of the switch position in the HI 770 XHD control panel, allowing straightforward installation.
- Broad HI 770 XHD Fitment — Compatible with Arctic Bear XHD, Arctic Bear XHD NS, and standard HI 770 XHD indirect air heater configurations across multiple duct and serial number variants.
- Restored Heater Control Function — A faulty or worn switch can cause the heater to fail to start, cycle incorrectly, or lose operator control; replacing it with part 5000166737 restores full, predictable operation.
- Electrical Safety Compliance — Using the correct OEM switch maintains the designed circuit protection and switching characteristics of the heater's control system, which is critical in diesel-fueled heating equipment operating in enclosed or temporary work environments.
The switch on a Wacker Neuson HI 770 XHD indirect-fired air heater serves as a primary operator control point within the unit's electrical circuit, enabling or interrupting power flow to key heater functions. When this component wears or fails, operators may experience unresponsive controls, failure to ignite, or erratic heater behavior that reduces heating output and can interrupt work in cold-weather applications. Replacing the switch with genuine OEM part 5000166737 restores the original switching function and keeps the heater performing as designed.
Part Details
| Part Number | 5000166737 |
|---|---|
| Old Part Number | 0166737 |
| 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.
