The Wacker Neuson Seal Plate is a genuine OEM component designed for HI 770 XHD and Arctic Bear XHD indirect-fired diesel air heaters. Sourced directly from Wacker Neuson, this part carries the same specifications as the original, ensuring a consistent, accurate fit within the heater assembly. It is confirmed compatible with the HI 770 XHD Indirect Air Heater (Diesel, 1x16), the Arctic Bear XHD Indirect Air Heater (Diesel, 2x12), and the Arctic Bear XHD NS Indirect Heater. When a seal plate wears or fails, combustion integrity and airflow separation within the heat exchanger are compromised — replacing it promptly with a genuine OEM part keeps the heater operating safely and at rated output.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Wacker Neuson's original material and dimensional specifications, ensuring the combustion chamber seal performs as designed under sustained high-temperature operation.
- Direct Drop-In Replacement — Engineered to align precisely with the existing mounting points in the HI 770 XHD heater chassis, requiring no modification to the surrounding assembly during installation.
- Confirmed Fitment — Verified for the HI 770 XHD (Diesel, 1x16), Arctic Bear XHD (Diesel, 2x12), and Arctic Bear XHD NS indirect-fired diesel heater models.
- Sustained Heat Output — A properly seated seal plate maintains the separation between combustion gases and clean air flow, which is essential for consistent BTU output and fuel efficiency in cold-weather jobsite heating.
- Combustion Safety Compliance — In indirect-fired heaters, seal integrity is critical to preventing combustion gas contamination of the supply air stream; replacing a degraded seal plate with a genuine OEM part supports safe heater operation in enclosed or semi-enclosed spaces.
The seal plate is a structural and thermal barrier component positioned within the heat exchanger section of an indirect-fired air heater. It separates the combustion side of the heat exchanger from the clean air discharge path, ensuring that exhaust gases are vented externally while only heated, uncontaminated air is delivered into the work area. When the seal plate warps, cracks, or deteriorates due to thermal cycling, combustion gases can migrate into the supply airstream — reducing heating efficiency, triggering safety shutdowns, and creating a potential hazard in occupied spaces. Replacing a worn seal plate restores the heater's thermal separation and operational safety.
Part Details
| Part Number | 5000167408 |
|---|---|
| Old Part Number | 0167408 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Seal Plate |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 770 XHD Indirect Air Heater, Diesel, 1x16 | HI770XHD | 5000620183 |
| HI 770 XHD Indirect Air Heater, Diesel, 2x12 | Arctic Bear XHD | 5000620676 |
| 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.
