The Wacker Neuson Relay Socket, 8 Pin, 300V is a genuine OEM component designed for the HI 770 XHD Indirect Air Heater series, including Arctic Bear XHD and Arctic Bear XHD NS configurations. As a direct factory replacement, this relay socket meets the original electrical specifications required to keep your heater's control circuit operating correctly. Compatible across multiple HI 770 XHD build configurations — including single- and dual-output diesel heater setups — this part is sourced directly from Wacker Neuson to ensure an exact match with the original component it replaces.
Key Features
- Correct Voltage Rating for the Application — Rated at 300V with an 8-pin configuration, this socket matches the original electrical specification of the HI 770 XHD control system.
- Genuine OEM Part — Manufactured by Wacker Neuson to the same standard as the original, ensuring the relay seats and connects exactly as designed without any adaptation.
- Broad HI 770 XHD Compatibility — Fits multiple HI 770 XHD Indirect Air Heater variants, including Arctic Bear XHD and Arctic Bear XHD NS configurations across diesel-powered models.
- Protects Relay Function and Control Circuit Integrity — A worn or damaged relay socket can cause intermittent relay seating, leading to unreliable heater ignition, control failures, or total heater shutdown in cold-weather operations.
- Electrical Safety Compliance — Using the correct OEM-rated 300V socket ensures the relay connection operates within the designed voltage tolerance, reducing the risk of arcing or connection failure in high-demand heating cycles.
A relay socket provides the physical connection point that holds and interfaces with the relay in an electrical control circuit. In an indirect air heater like the HI 770 XHD, the relay manages switching functions for critical components such as the fuel system and ignition controls — meaning a secure, correctly rated socket is essential for consistent heater operation. When the socket becomes cracked, corroded, or loose, the relay can seat poorly, resulting in erratic switching, control board errors, or a heater that fails to start or maintain combustion reliably.
Part Details
| Part Number | 5200009340 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Relay Socket, 8 Pin, 300V |
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 |
| HI770XHD Indirect Heater | Arctic Bear XHD NS | 5000620690 |
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.
