The Husqvarna 590398601 Flap is a genuine OEM replacement component designed for a wide range of Husqvarna dust extractors and floor grinders, including the S26, S36, T4000, T4000GP, C3000, D30, PS30, HTCD10, and HTCD20. As an authentic Husqvarna part, it is manufactured to the same specifications as the original, ensuring a correct, reliable fit without modification. DHS Equipment supplies this part to help keep your dust management and surface preparation equipment operating at full efficiency.
Key Features
- Genuine OEM Construction — Manufactured to Husqvarna's original material and dimensional specifications, ensuring the same service life and sealing performance as the factory-installed component.
- Drop-In Replacement — Engineered to match the original mounting points and geometry, this flap installs directly without cutting, trimming, or adapting.
- Broad Equipment Compatibility — Fits the S13, S26, S36, T4000, T4000GP, C3000, D30, PS30, HTCD10, and HTCD20, covering both the S-line dust extractors and the HTCD floor grinder dust systems.
- Maintains Airflow and Containment — A properly functioning flap preserves the directed airflow path within the dust extraction system, maintaining suction efficiency and preventing dust bypass that can compromise air quality on site.
- Cross-Reference Confidence — Verify part number 590398601 against your machine's parts diagram to confirm the correct position and variant before ordering.
The flap is an internal directional or sealing component within the dust extraction or collection housing, guiding airflow along the intended path and preventing unfiltered air or captured debris from bypassing the filtration stage. When this component is damaged, warped, or missing, suction performance drops noticeably and dust can escape back into the workspace, creating both an air quality hazard and reduced cleaning effectiveness. Replacing a worn flap restores proper airflow direction and keeps the extraction system working as designed.
Part Details
| Part Number | 590398601 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Flap |
Compatibility & Fitment
| Name | Model |
|---|---|
| Dust & Slurry Equipment | T4000GP |
| Dust & Slurry Equipment | T4000 |
| Dust & Slurry Equipment | C3000 |
| Dust & Slurry Equipment | S36 |
| Dust & Slurry Equipment | S13 |
| Floor Grinder | HTCD10 |
| Floor Grinder | HTCD20 |
| Dust & Slurry Equipment | D30 |
| Dust & Slurry Equipment | S26 |
| Dust & Slurry Equipment | PS30 |
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.
