The Wacker Neuson is a genuine OEM Fast Blow Fuse 5 Amp designed for the HI 770 XHD Indirect Air Heater series. As a direct factory replacement, this fuse is the correct component for protecting the electrical circuits in Arctic Bear XHD, HI770XHD, and Arctic Bear XHD NS model heaters. Sourcing the genuine OEM part means you get the exact amperage rating and blow speed the original design calls for — no guesswork, no substitution risk. Keep a spare on hand and you'll have your heater back up and running fast when a fuse event occurs.
Key Features
- Correct Amperage and Blow Speed: — Rated at exactly 5 amps with a fast blow response, matching the circuit protection specification the HI 770 XHD electrical system was engineered around.
- Genuine OEM Part: — Manufactured by Wacker Neuson to the same standard as the original component installed at the factory, ensuring the fuse behaves predictably under fault conditions.
- Drop-In Replacement: — Installs directly into the existing fuse holder with no modification — correct physical format for the HI 770 XHD heater platform.
- Broad HI 770 XHD Coverage: — Compatible across Arctic Bear XHD, HI770XHD, and Arctic Bear XHD NS model families, covering both single and dual-outlet diesel indirect air heater configurations.
- Electrical Circuit Protection: — A functioning fuse prevents overcurrent damage to heater controls and wiring; a blown or incorrect-rated fuse can cause nuisance trips, failed ignition, or unprotected circuit damage.
- Electrical Safety Compliance: — Using the correct OEM-rated fuse maintains the integrity of the heater's overcurrent protection design — substituting a higher-rated fuse can mask faults and create a genuine electrical hazard.
A fast blow fuse is a critical electrical safety component that immediately interrupts current flow when a circuit draws more amperage than it is rated to handle. In indirect air heaters like the HI 770 XHD, the fuse protects the control board, ignition system, and wiring harness from damage caused by short circuits or component failures. When a fuse blows, the heater will lose power or fail to start — replacing it with the correct part restores protection and operation; installing the wrong rating leaves the circuit vulnerable to serious damage.
Part Details
| Part Number | 5200014543 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fast Blow Fuse 5 Amp |
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.