The Wacker Neuson Prefilter is a genuine OEM component designed for HI 120 and HI 120HD indirect-fired air heaters. As a direct factory replacement, this prefilter carries the same specifications as the original part, ensuring a proper fit within the air intake system of your heater. It is confirmed compatible with the HI 120 and HI 120HD models, making it straightforward to source the correct part for your unit.
Key Features
- Genuine OEM Filtration Media — Manufactured to the same pore structure and flow-resistance ratings as the original, ensuring consistent air intake protection without over-restricting combustion airflow.
- Direct-Fit Replacement — Sized and configured to seat correctly in the existing filter housing on your HI 120 or HI 120HD heater, requiring no trimming or adaptation of the housing.
- Confirmed HI 120 and HI 120HD Compatibility — Verified fitment across both the standard HI 120 and heavy-duty HI 120HD indirect-fired air heater variants.
- Protects Burner and Fuel System Components — A clean, functioning prefilter keeps airborne debris out of the combustion chamber; a clogged or deteriorated prefilter can cause incomplete combustion, sooting, and premature burner wear.
- Combustion Safety Relevance — Correct air-to-fuel ratio depends on unobstructed airflow through the prefilter; running a degraded filter can compromise combustion efficiency and heater output on the job.
The prefilter sits upstream of the main air intake on an indirect-fired air heater, capturing dust, debris, and particulates before they can enter the combustion chamber and heat exchanger. By keeping contaminants out of the burner assembly, it helps maintain the correct air-to-fuel mixture needed for clean, efficient combustion and steady heat output. When a prefilter becomes clogged or breaks down, restricted airflow can lead to incomplete combustion, excess sooting of internal components, and reduced heating performance — making regular inspection and timely replacement an essential part of heater maintenance.
Part Details
| Part Number | 5200024754 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Prefilter |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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.
