The Wacker Neuson Valve Solenoid is a genuine OEM component designed for the HI 400HD G Indirect Air Heater. Sourced directly through Wacker Neuson's authorized parts program, this solenoid valve meets the original design specifications for the HI 400HD G platform. Correct solenoid function is critical to fuel delivery and combustion control in indirect-fired heating equipment, making this an essential service part for maintaining consistent heat output on the jobsite.
Key Features
- Genuine OEM Electrical Integrity — Built to the original coil resistance and actuation spec, ensuring the valve opens and closes at the correct voltage signal for accurate fuel metering.
- Direct-Fit Replacement — Matches the original mounting configuration and port sizing of the HI 400HD G, dropping into place without modification to existing fuel or electrical connections.
- Confirmed HI 400HD G Fitment — Verified for the HI 400HD G Indirect Air Heater, so you can order with confidence knowing this is the correct part for your machine.
- Consistent Heat Output Restored — A faulty solenoid causes erratic burner cycling or complete heater shutdown; replacing it with a genuine part restores stable, controlled combustion and steady heat delivery.
- Fuel System Safety — As a fuel-control component, the solenoid valve plays a direct role in safe heater operation. Using a genuine OEM part ensures the valve actuates correctly and does not allow uncontrolled fuel flow.
The valve solenoid is an electromechanical component that controls the flow of fuel into the burner assembly of an indirect-fired air heater. When the heater's control system calls for heat, it sends an electrical signal to the solenoid, which opens the valve and allows fuel to reach the combustion chamber; when the signal stops, the valve closes and cuts off fuel flow. A worn or failed solenoid can result in the heater failing to ignite, producing inconsistent heat output, or cycling on and off unpredictably — all of which compromise heating performance and can indicate an unsafe operating condition.
Part Details
| Part Number | 5000186709 |
|---|---|
| Old Part Number | 0186709 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Valve Solenoid |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
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.
