The Wacker Neuson Disc is a genuine OEM component designed for the HI 400HD D, HI 120, and HI 120HD indirect-fired air heaters. As a direct factory replacement, this disc is sourced through Wacker Neuson's authorized parts program, ensuring it meets the exact specifications of the original component installed at the factory. Compatible across the HI 120, HI 120HD, and HI 400HD D heater models, this part is the correct choice when restoring your unit to full working order. Always verify your machine's model number and machine number before ordering to confirm fitment.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original design tolerances, ensuring the disc seats and operates exactly as intended within the heater assembly.
- Direct-Fit Replacement — Engineered to drop into the existing heater assembly without rework, matching the original mounting points and dimensions of the factory component.
- Broad HI-Series Compatibility — Fits the HI 120, HI 120HD, and HI 400HD D indirect-fired air heaters, covering a wide range of Wacker Neuson heating equipment.
- Supports Consistent Heat Output — A correctly functioning disc helps maintain proper combustion and airflow dynamics within the heater, supporting steady, efficient heat delivery on the jobsite.
- Combustion System Integrity — In fuel-burning heating equipment, worn or damaged disc components can affect combustion performance and emissions compliance; replacing with a genuine part helps keep the heater operating within its designed parameters.
In an indirect-fired air heater, the disc is a component within the burner or fuel delivery assembly that plays a role in regulating combustion — controlling how fuel and air interact to produce a clean, consistent flame. When this disc becomes worn, cracked, or damaged, it can disrupt the combustion process, leading to uneven heating, inefficient fuel use, or difficulty starting the unit. Replacing a failed disc promptly restores the heater's ability to deliver reliable, clean heat output in cold-weather construction and worksite applications.
Part Details
| Part Number | 5000183978 |
|---|---|
| Old Part Number | 0183978 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Disc |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| 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.
