The Wacker Neuson Diesel Pre-Heated Filter 1/4FF 200 is a genuine OEM component designed for the HI 110D, HI 200D, and HI 300D series indirect air heaters. As a direct source replacement, it ensures the factory-specified fuel pre-heating and filtration function is fully maintained in cold-weather diesel heating applications. This part covers both standard and heavy-duty diesel variants across the HI 110HD D, HI 200HD D, and HI 300HD D models, making it the correct choice for a wide range of Wacker Neuson indirect heater configurations. Sourcing a genuine OEM part guarantees the component meets the exact specifications the heater was engineered around.
Key Features
- Genuine OEM Filtration Integrity — Built to Wacker Neuson's specified micron rating and pre-heating performance for diesel fuel systems, ensuring no compromise in fuel conditioning at the filter stage.
- Direct-Fit 1/4FF Connection — Engineered to the 1/4FF port standard for a straight drop-in replacement on compatible heater fuel lines with no adapters or modifications.
- Broad HI-Series Compatibility — Fits the HI 110D, HI 110HD D, HI 200D, HI 200HD D, HI 300D, and HI 300HD D indirect air heaters in a single part number.
- Cold-Climate Fuel Protection — Pre-heating function prevents wax crystal formation in diesel fuel at low ambient temperatures, keeping the heater firing consistently in demanding winter conditions.
- Fuel System Safety — A properly functioning pre-heated filter prevents fuel starvation and uncontrolled burner behavior; a clogged or failed unit can cause erratic combustion or heater shutdown in critical heating applications.
A diesel pre-heated filter serves two functions simultaneously: it removes particulate contamination from the fuel supply and applies heat to the diesel before it reaches the burner assembly. In cold-weather operation, diesel fuel is prone to gelling, and a pre-heated filter counteracts this by warming the fuel as it passes through, maintaining consistent flow and combustion quality. When this filter becomes clogged or its heating element fails, the heater may experience hard starts, reduced heat output, or complete burner lockout — making timely replacement essential for uninterrupted operation on the job.
Part Details
| Part Number | 5200021219 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Diesel Pre-Heated Filter 1/4FF 200 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 110D, HEATER-INDIRECT, DIESEL, -20° | HI110D | 5000620915 |
| HI 200D Indirect Air Heater | HI200D | 5200011877 |
| HI 200HD D Indirect Air Heater, Diesel | HI200HDD | 5200011878 |
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.
Wacker Neuson
Wacker Neuson 5200021279 Diesel Pre-Heated Filter 1/4FF - 200
