The Wacker Neuson Casing is a genuine OEM component designed for the HI400HD, HI120, HDR155, and HDR45 series indirect air and direct fired radiant heaters. As a direct factory replacement, this casing restores the structural housing of your heating unit, ensuring all internal components are correctly enclosed and protected during operation. Confirmed fitment spans the HI 400HD G, HI 400HD D, HI 120, HI 120HD, HDR 155, and HDR 45 models, making it a versatile stock item for rental fleets and service centers running multiple Wacker Neuson heater configurations.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original design specs, ensuring correct panel geometry, fastener alignment, and material grade for the heater housing.
- Drop-In Housing Replacement — Matches the original mounting points and panel profile for a straightforward swap with no modification to surrounding components.
- Broad Heater Family Fitment — Compatible with HI400HD G, HI400HD D, HI120, HI120HD, HDR155, and HDR45 indirect air and direct fired radiant heater models.
- Protects Internal Components — A sound outer casing keeps the burner assembly, heat exchanger, and fuel system shielded from job site debris, moisture, and impact damage.
- Safety-Critical Enclosure — On combustion-based heating equipment, a compromised casing can expose operators to heat, exhaust, or fuel system hazards; replacing a damaged casing promptly restores safe operating conditions.
The casing forms the structural outer shell of the heater unit, enclosing and protecting the burner, heat exchanger, and associated fuel and airflow components from external elements. On indirect-fired models like the HI series, it also plays a role in channeling airflow efficiently through the unit to maximize heat output. When the casing is cracked, dented, or otherwise compromised, it can disrupt airflow patterns, expose internal parts to damage, and create safety risks — making timely replacement essential to keeping the heater running safely and efficiently.
Part Details
| Part Number | 5000183957 |
|---|---|
| Old Part Number | 0183957 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Casing |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
| HDR 45 | HDR45 | 5200013800 |
| HI 120 | HI120 | 5200019342 |
| HI 120HD | HI120HD | 5200019343 |
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.
