The Wacker Neuson Terminal is a genuine OEM component designed for the HI 770 XHD Indirect Air Heater series, S3000 Hydronic Surface Heater, and E3000 Hydronic Surface Heater models. Sourced directly from Wacker Neuson, this terminal ensures correct electrical connection integrity as originally engineered for these climate and heating units. Compatible across multiple configurations including diesel indirect air heaters and hydronic surface heaters with integrated generators, the is the correct OEM replacement when the original terminal shows wear, corrosion, or damage.
Key Features
- Correct Electrical Contact Rating — Manufactured to the same contact and conductivity specification as the original, ensuring a secure, low-resistance connection in demanding heating system circuits.
- Drop-In OEM Replacement — Connects directly into the existing terminal position with no adaptation required; matches the original connector geometry and pin configuration.
- Broad Fitment Across Heating Equipment — Fits HI 770 XHD Indirect Air Heater (multiple configurations), S3000 Hydronic Surface Heater, and E3000 Hydronic Surface Heater models.
- Protects Heating System Continuity — A failed or corroded terminal can interrupt power delivery to critical heater controls; replacing with a genuine OEM part restores consistent, uninterrupted operation.
- Electrical Safety Compliance — Using the correct OEM-spec terminal in fuel-fired and hydronic heating equipment helps maintain the integrity of the original electrical system design, reducing risk of arcing or connection failure in the field.
A terminal is an electrical connector point that joins wiring to a component within the heater's control or power circuit. In indirect air heaters and hydronic surface heaters, these terminals carry the electrical signals and current needed to control burner operation, pump functions, and safety shutoffs. When a terminal corrodes, loosens, or breaks, it can cause intermittent faults, complete loss of heater function, or unreliable control behavior — leaving crews without heat in critical cold-weather applications. Replacing a worn terminal with the correct OEM part restores a solid, properly rated electrical connection and brings the system back to its intended operating condition.
Part Details
| Part Number | 5000166429 |
|---|---|
| Old Part Number | 0166429 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Terminal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| Hydronic Surface Heater w/ Gen erator, 3000 ft hose | S3000 | 5000620218, 5000620182 |
| E3000 Hydronic Surface Heater with generator | E3000 | 5000620219, 5000620158 |
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.
