The Wacker Neuson Valve is a genuine OEM component designed for the HI 400HD D, HI 120, and HI 120HD indirect-fired air heaters. Sourced directly through Wacker Neuson's authorized parts program, this valve is an exact match to the original unit installed at the factory. It fits the HI400HDD, HI120, and HI120HD heater models, ensuring correct installation without guesswork. When uptime matters on cold-weather job sites, having the right OEM part on hand keeps your heater performing as intended.
Key Features
- Genuine OEM Construction: — Manufactured to the exact flow and pressure tolerances specified for Wacker Neuson indirect-fired air heater fuel or air systems — not a generic substitute.
- Drop-In Replacement: — Matches the original valve's port configuration and connection points, allowing straightforward installation into the heater's existing lines or housing.
- Broad HI Series Compatibility: — Confirmed fitment across HI 400HD D, HI 120, and HI 120HD indirect-fired air heater models.
- Sustained Heat Output: — A properly functioning valve maintains correct fuel or airflow regulation, keeping the heater running at rated output; a failed valve can cause weak heat, ignition issues, or shutdown.
- Fuel System Safety: — Valves in indirect-fired heaters control combustion-related fluid or air paths; using a correctly rated OEM part is critical to safe, compliant heater operation in enclosed or occupied work areas.
In an indirect-fired air heater, the valve governs the controlled movement of fuel or air through a critical point in the combustion or supply circuit. By opening and closing on demand, it regulates flow to maintain steady burner operation and consistent heat output. When a valve wears, sticks, or fails to seal properly, the heater may run erratically, fail to ignite, or shut down on a safety fault — making prompt replacement with the correct OEM part essential for continuous cold-weather operation.
Part Details
| Part Number | 5000183944 |
|---|---|
| Old Part Number | 0183944 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 120 | HI120 | 5200019342 |
| HI 120HD | HI120HD | 5200019343 |
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.
