The Wacker Neuson 5000183972 Switch is a genuine OEM component designed for the HI-series indirect air heaters and HDR-series direct-fired radiant heaters. This OEM part is sourced directly through Wacker Neuson's authorized parts program, ensuring it meets the exact electrical and mechanical specifications of the original switch installed at the factory. Verified fitment spans multiple heater configurations including the HI 110D, HI 110HD D, HI 200D, HI 200HD D, HI 300D, HI 300HD D, HI 400HD G, HI 400HD D, HI 120, HI 120HD, HI 90, HI 90HD, HI 35, HD 50, HD 70, HDR 45, HDR 115, and HDR 155. When your heater's switch fails, replacing it with the correct OEM part gets your crew back to work without guesswork.
Key Features
- Exact Electrical Specification — Manufactured to the original switching circuit requirements of Wacker Neuson HI and HDR heater systems, so current load and contact ratings match the application.
- Genuine OEM Part — Sourced through Wacker Neuson's authorized parts channel under part number 5000183972, ensuring the component you receive is the same one used in original production.
- Direct Drop-In Installation — Designed to mate with the existing wiring harness connector and mounting location, so no splicing or adapter wiring is needed during replacement.
- Broad Heater Family Coverage — A single part number covers diesel and gas indirect air heaters (HI-series) as well as direct-fired radiant heaters (HDR-series) across a wide range of BTU outputs, from the HI 35 up to the HI 400HD D.
- Restores Reliable Ignition and Burner Control — A worn or failed switch can prevent the heater from starting or cause intermittent shutdowns mid-operation; a correct replacement restores consistent on/off burner control in cold-weather jobsite conditions.
- Electrical Safety Integrity — Using the correct OEM-rated switch in a fuel-burning heater circuit maintains proper load handling and helps prevent faults in the ignition and safety lockout system.
The switch on a Wacker Neuson indirect or direct-fired heater serves as the primary operator control for activating the burner circuit. When the switch is engaged, it completes the electrical circuit that triggers the ignition sequence and allows the heater to begin producing heat. A faulty switch can manifest as a heater that won't start, cuts out unexpectedly, or fails to respond to operator input — any of which can bring work to a halt during cold-weather concrete pours, thawing operations, or enclosed-space heating tasks. Replacing a failed switch with the correct OEM part restores full control over the heater's operating cycle and keeps the burner safety system functioning as intended.
Part Details
| Part Number | 5000183972 |
|---|---|
| Old Part Number | 0183972 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Switch |
Compatibility & Fitment
| Name | Models | Machine Number |
|---|---|---|
| HD 50 | HD50 | 5200019335 |
| HD 70 | HD70 | 5200019336 |
| HDR 45 | HDR45 | 5200013800 |
| HDR 115 Direct Fired Radiant Heater | HDR115 | 5100018592 |
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
| HI 90 | HI90 | 5200019340 |
| HI 90HD | HI90HD | 5200019341 |
| HI 110D, HEATER-INDIRECT, DIESEL, -20° | HI110D | 5000620915 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 120 | HI120 | 5200019342 |
| HI 120HD | HI120HD | 5200019343 |
| HI 200 D Indirect Air Heater | HI200D | 5000620865, 5200011877 |
| HI 200HD D Indirect Air Heater | HI200HDD | 5000620916, 5200011878 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
| HI35 | HI35 | 5200019337 |
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.
