The Wacker Neuson Nozzle is a genuine OEM component designed for the HI 770 XHD series indirect-fired diesel air heaters, including Arctic Bear XHD and Arctic Bear XHD NS configurations. As a direct factory replacement, this nozzle restores proper fuel atomization and combustion performance to your heater. It is compatible across the full range of HI 770 XHD units, covering 2x12, 1x16, and 1x20 duct configurations as well as Extra Heavy Duty Air Heater variants. Sourcing the correct OEM nozzle ensures the burner operates within its designed parameters and helps you avoid the temperature inconsistencies and misfire issues that a worn or incorrect nozzle can cause.
Key Features
- Correct Fuel Atomization Geometry — Matched to the HI 770 XHD burner head, this genuine OEM nozzle delivers the precise spray pattern and cone angle the combustion chamber requires for clean, consistent ignition.
- Direct Drop-In Replacement — Engineered to the same thread pitch and seat taper as the original, this nozzle installs into the burner assembly without modification to fittings or fuel lines.
- Broad HI 770 XHD Compatibility — Fits Arctic Bear XHD, Arctic Bear XHD NS, and standard HI 770 XHD indirect air heater units across multiple duct and output configurations.
- Sustained Heat Output — A properly functioning nozzle maintains full-rated BTU output; a clogged or worn nozzle leads to hard starts, incomplete combustion, and uneven heating on the worksite.
- Fuel System Safety — Correct nozzle sizing prevents over-fueling and carbon buildup, reducing the risk of combustion irregularities in an enclosed diesel burner system.
The nozzle in an indirect-fired diesel air heater is responsible for breaking liquid fuel into a fine, evenly distributed mist before it enters the combustion chamber. This atomization process is critical — the finer and more uniform the spray, the cleaner and more complete the burn. When a nozzle wears or becomes partially blocked, the heater may struggle to ignite, produce black exhaust smoke, or fail to reach its rated output temperature. Replacing the nozzle at the manufacturer's recommended service interval, or at the first sign of combustion trouble, keeps the HI 770 XHD running efficiently and safely throughout the heating season.
Part Details
| Part Number | 5000168753 |
|---|---|
| Old Part Number | 0168753 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Nozzle |
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.
