The Wacker Neuson Insulation is a genuine OEM thermal insulation component designed for the HI 770 XHD series indirect-fired diesel air heaters. Sourced directly from Wacker Neuson, this part meets the same specifications as the original component installed at the factory. It is confirmed to fit multiple HI 770 XHD configurations, including the Arctic Bear XHD, Arctic Bear XHD NS, and standard HI770XHD models across a range of duct and output configurations. Verifying your machine number against the fitment list before ordering ensures a correct, hassle-free installation.
Key Features
- Genuine OEM Thermal Rating — Manufactured to Wacker Neuson's original heat-retention specification, ensuring the insulation performs at the same thermal efficiency as the part it replaces.
- Direct-Fit Replacement — Engineered to match the original mounting profile and dimensions of the HI 770 XHD heater, installing in the same position without cutting or trimming.
- Broad HI 770 XHD Compatibility — Fits Arctic Bear XHD, Arctic Bear XHD NS, and standard HI770XHD indirect air heater variants across multiple duct configurations (1x16, 1x20, 2x12).
- Heat Containment for Consistent Output — Properly functioning insulation keeps combustion heat directed through the heat exchanger, supporting steady, efficient warm-air delivery on cold-weather jobsites.
- Fuel Efficiency Protection — Degraded or missing insulation forces the heater to work harder to maintain output temperature, increasing fuel consumption; replacing it restores efficient operation.
Insulation in an indirect-fired air heater serves as the thermal barrier that contains heat within the combustion and heat-exchanger chamber, preventing energy loss to the surrounding enclosure and directing warmth into the outgoing airstream. When this insulation is intact, the heater maintains consistent outlet temperatures with less fuel draw. When the insulation deteriorates, cracks, or is damaged, heat escapes into the heater's outer casing rather than flowing to the work area, reducing heating efficiency and placing additional thermal stress on surrounding components. Replacing worn insulation is a straightforward maintenance step that restores the HI 770 XHD to its designed heating performance.
Part Details
| Part Number | 5000167425 |
|---|---|
| Old Part Number | 0167425 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Insulation |
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.
