The Wacker Neuson Insulation is a genuine OEM component designed for the HI 770 XHD Indirect Air Heater series, including Arctic Bear XHD and Arctic Bear XHD NS configurations. As a direct OEM replacement, this insulation is sourced from Wacker Neuson to ensure it meets the original design requirements of the HI 770 XHD platform. Compatible across multiple HI 770 XHD configurations — diesel-powered units in 1x16, 1x20, and 2x12 ducting setups — part number is the correct choice when restoring your heater's thermal efficiency. Verify your machine number against the listed configurations to confirm fitment before ordering.
Key Features
- Genuine OEM Thermal Specification — Manufactured to Wacker Neuson's original material and density spec, ensuring the insulation retains heat effectively within the HI 770 XHD combustion and heat exchange enclosure.
- Direct Drop-In Replacement — Engineered to seat and secure exactly as the original, with no trimming or adaptation needed to fit the HI 770 XHD housing.
- Broad HI 770 XHD Coverage — Fits multiple Arctic Bear XHD and HI 770 XHD configurations across 1x16, 1x20, and 2x12 duct arrangements, covering a wide range of Extra Heavy Duty indirect air heater builds.
- Sustained Heating Output — Intact insulation keeps heat channeled toward the outgoing air stream; degraded or missing insulation causes heat loss through the casing, reducing the unit's effective BTU delivery at the duct outlet.
- Fuel Efficiency Protection — A properly insulated heat exchanger reduces the workload on the burner, helping the HI 770 XHD run at its rated efficiency rather than burning additional fuel to compensate for thermal losses.
The insulation in an indirect-fired air heater like the HI 770 XHD lines the internal surfaces of the heating chamber to contain and direct thermal energy produced by the burner. By preventing heat from escaping through the outer casing, it maximizes the amount of energy transferred to the outgoing air stream and protects surrounding components from excessive temperatures. When insulation degrades, cracks, or pulls away from the housing, heat distribution becomes uneven, output drops noticeably, and surrounding structural components can be exposed to damaging heat levels over time.
Part Details
| Part Number | 5000167422 |
|---|---|
| Old Part Number | 0167422 |
| 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 |
| 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.
