The Wacker Neuson Fuse Holder is a genuine OEM component designed for the HI300 and HI400 series indirect air heaters, including diesel and dual-fuel variants. Sourced directly from Wacker Neuson, this fuse holder meets the original electrical specifications of the machine, ensuring the circuit protection system functions exactly as intended. It is a direct replacement for the factory-installed unit and covers multiple configurations across the HI300D, HI300HD D, HI400HD G, and HI400HD D heater models.
Key Features
- OEM Electrical Integrity — Manufactured to the original contact rating and housing tolerances, so the fuse seats and releases correctly without arcing or poor contact.
- Direct Drop-In Replacement — Matches the original mounting configuration and wiring connections on the HI300 and HI400 series, so installation follows the standard service procedure without modification.
- Broad HI-Series Compatibility — Fits HI300D, HI300HD D, HI400HD G, and HI400HD D indirect air heaters, covering both gasoline and diesel variants in the lineup.
- Protects Heater Electrical Circuits — A fully functional fuse holder keeps the fuse properly seated and making clean contact; a damaged or cracked holder can cause intermittent power loss or prevent the heater from starting altogether.
- Electrical Safety Compliance — As a fuse circuit component, correct fitment and housing condition are essential to ensuring overcurrent protection works as designed, protecting both the machine and the operator.
A fuse holder secures the fuse in the electrical circuit and maintains a firm, low-resistance connection between the fuse terminals and the wiring. In an indirect air heater, this circuit protects sensitive control and ignition components from current spikes that could cause permanent damage. When the fuse holder cracks, corrodes, or loses its clamping tension, the fuse may fail to blow at the correct threshold or lose contact intermittently — causing erratic operation, no-start conditions, or unprotected circuits that put downstream components at risk.
Part Details
| Part Number | 5200021269 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuse Holder |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
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.
