The Wacker Neuson Primary Control is a genuine OEM component designed for the HI110HD D, HI200D, HI200HD D, HI300D, and HI300HD D indirect-fired diesel air heater series. As an authentic Wacker Neuson part, the is built to the exact specifications required by these heaters, ensuring the ignition and burner control sequence operates as intended from day one. This Primary Control is confirmed to fit multiple HI-series heater configurations, making it a reliable choice for fleet operators and service technicians managing Wacker Neuson climate equipment.
Key Features
- Genuine OEM Ignition Sequence Accuracy — Manufactured to Wacker Neuson's exact electrical specifications, ensuring the burner fires, monitors, and shuts down on the precise timing profile these diesel heaters depend on.
- Direct Drop-In Replacement — Matches the original mounting configuration and wiring interface of the HI-series heater control panel, allowing a straightforward swap without adapting connectors or brackets.
- Broad HI-Series Compatibility — Fits the HI110HD D, HI200D, HI200HD D, HI300D, HI300HD D, and HDR155, covering a wide range of Wacker Neuson indirect-fired and radiant diesel heater models.
- Sustained Heat Output — A correctly functioning Primary Control maintains consistent burner cycling and flame supervision, delivering steady, uninterrupted heat output on cold-weather jobsites.
- Fuel System Safety Compliance — The Primary Control governs burner lockout and flame failure response; installing the correct OEM unit ensures the heater's safety shutdown sequences function as designed, protecting both the equipment and the work area.
The Primary Control is the brain of the burner assembly in an indirect-fired diesel air heater. It manages the ignition sequence — energizing the igniter, opening the fuel valve, confirming flame presence through a sensor signal, and locking out the burner if ignition fails or flame is lost. Without a properly functioning Primary Control, the heater may fail to light, cycle on and off erratically, or shut down on lockout and refuse to restart. Replacing a faulty Primary Control restores full, safe burner operation and prevents nuisance lockouts that interrupt heating on cold-weather work sites.
Part Details
| Part Number | 5000186773 |
|---|---|
| Old Part Number | 0186773 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Primary Control |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 200 D Indirect Air Heater | HI200D | 5000620865, 5200011877 |
| HI 200HD D Indirect Air Heater | HI200HDD | 5000620916, 5200011878 |
| 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.
