The Wacker Neuson Junction Box is a genuine OEM component designed for the E-Series hydronic ground and surface heaters, HI 770 XHD indirect air heaters, Pureheat hydronic heaters, Arctic Bear HD and XHD mobile air heaters, CH5000 cross heaters, S3000 hydronic surface heaters, and MC5200 mobile drying systems. As a factory-sourced part, the is manufactured to the exact specifications used in original production, ensuring correct wiring terminations, housing dimensions, and environmental sealing. This junction box fits an extensive range of Wacker Neuson heating equipment, including E1100, E2200, E3000, E3000 ES, E5000, and related configurations with lift bails, integrated generators, and thermostat controls.
Key Features
- Correct Terminal Configuration: — Wired to match OEM connector layouts, so circuits terminate correctly without splicing or adapter work.
- Sealed Housing Construction: — Enclosure is built to withstand the moisture-heavy environments typical of ground thawing, concrete curing, and winter jobsite heating applications.
- Broad Heater Family Coverage: — A single part number covers E1100, E2200, E3000, E3000 ES, E5000, HI 770 XHD, Arctic Bear HD/XHD, Pureheat, S3000, CH5000, and MC5200 models.
- Electrical System Integrity: — A functioning junction box maintains clean circuit routing across the heater's control and burner systems; a failed or damaged box can cause intermittent faults, loss of ignition control, or full heater shutdown.
- Electrical Safety Compliance: — Using the correct OEM junction box preserves the original circuit protection design, reducing the risk of exposed connections or unintended fault paths in high-current heating circuits.
- Direct OEM Sourcing: — Part number 5000166683 is the Wacker Neuson factory part, so fitment across all listed machine configurations is confirmed without guesswork.
A junction box serves as the central wiring hub where multiple electrical circuits are routed, connected, and protected within the heater assembly. It houses the terminal connections that link the control board, burner, ignition, and auxiliary systems, keeping those connections organized, insulated, and shielded from moisture, vibration, and heat. When a junction box cracks, corrodes, or loses its sealing integrity, moisture intrusion and loose terminals can cause erratic burner behavior, nuisance faults, or a complete loss of heater function — making prompt replacement essential to keeping heating operations running through cold-weather work.
Part Details
| Part Number | 5000166683 |
|---|---|
| Old Part Number | 0166683 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Junction Box |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E3000 Hydronic Surface Heater with generator | E3000 | 5000620219, 5000620679, 5000620158, 5000620678, 5200014677, 5200004952, 5100017807, 5100017809, 5200014678, 5200014679, 5200014720, 5100017806, 5100017808, 5200014721, 5100017810, 5100017811, 5100025046, 5100055568, 5100056441, 5100017801, 5100056440, 5100025045 |
| HI 770 XHD Indirect Air Heater, Diesel, 2x12 | Arctic Bear XHD | 5000620676 |
| HI 770 XHD Indirect Air Heater, Diesel, 1x16 | HI770XHD | 5000620183, 5200003814, 5200004934, 5100049894 |
| E2200 GROUND HEATER, W/ LIFT BAIL | E2200 | 5000620215, 5000620176, 5000620216, 5000620226, 5100017448, 5100017449 |
| E5000 GROUND HEATER, W/GAS BURNER | E5000 | 5000620898, 5000620897, 5000620899 |
| Pureheat Hydronic Heater, Oil Burner | Pureheat | 5000620245, 5000620246, 5000620190, 5000620220 |
| E1100 GROUND HEATER | E1100 | 5000620172, 5000620244, 5200001676 |
| E3000 ES Hydronic Surface Heater | E3000ES | 5000620968, 5000620967 |
| Hydronic Surface Heater w/ Gen erator, 3000 ft hose | S3000 | 5000620218, 5000620182 |
| Mobile Drying System | MC5200 | 5000620201, 5000620232 |
| Indirect Mobile Air Heater, Na tural Gas | Arctic Bear HD | 5000620199, 5000620197 |
| Cross Heater with oil burner | CH5000 | 5000620240, 5000620242 |
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.
