The Wacker Neuson 5200011793 Nozzle 0.85 x 80 is a genuine OEM component designed for the HDR 155 Direct Fired Radiant Heater and HDR 45 direct fired radiant heaters. As a factory-original part, the part is manufactured to the exact spray angle and flow rate specifications required for consistent, efficient combustion in Wacker Neuson radiant heating units. Sourcing the correct nozzle is critical — an improperly sized or worn nozzle affects fuel atomization, heat output, and burner reliability. This genuine OEM replacement ensures your heater performs exactly as designed from day one.
Key Features
- Exact Spray Geometry — Engineered to deliver the precise 80° spray angle and 0.85 flow rating required for correct fuel atomization in Wacker Neuson radiant burner assemblies.
- Genuine OEM Sourcing — Supplied directly from Wacker Neuson's authorized parts network, ensuring this part meets every original combustion system specification.
- Direct Drop-In Replacement — Fits the burner nozzle port on the HDR 155 and HDR 45 without adaptation, threading directly into the existing nozzle assembly.
- Consistent Heat Output — A correctly rated nozzle maintains stable flame pattern and full BTU output; an undersized or clogged nozzle causes incomplete combustion, sooting, and reduced heating performance.
- Fuel System Safety — Combustion nozzles operate under pressurized fuel delivery — using a correctly rated OEM nozzle reduces the risk of misfire, fuel weeping, or burner lockout in the field.
The fuel nozzle is the final metering point in a direct fired radiant heater's combustion system. It atomizes pressurized fuel oil into a fine mist at a specific flow rate and spray angle, allowing it to mix with air and ignite cleanly at the burner head. The two numbers in the nozzle designation — 0.85 and 80 — refer to the fuel flow rate in gallons per hour and the spray cone angle in degrees respectively; both must match the heater's original specification exactly. When a nozzle wears, clogs, or is substituted with an incorrect rating, atomization degrades, leading to poor ignition, carbon buildup, reduced heat output, or repeated burner lockouts.
Part Details
| Part Number | 5200011793 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Nozzle 0.85 x 80 |
Compatibility & Fitment
| Name | Models | Machine Number |
|---|---|---|
| HDR 45 | HDR45 | 5200013800 |
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
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.
