The Husqvarna 590477702 Tank Cap Assembly is a genuine OEM component designed for S26, S36, T4000GP, and T4000 dust and slurry equipment. As a direct OEM replacement, this assembly is built to Husqvarna's exact specifications, ensuring a proper seal and secure fit on the tank inlet. Cross-reference part number 590477702 against your parts diagram to confirm compatibility with your specific unit before ordering. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Sealing Integrity — manufactured to Husqvarna's exact compression and thread specifications, ensuring the cap seats correctly and maintains a leak-free seal on the tank.
- Direct Assembly Replacement — this Tank Cap Assembly installs as a complete unit, replacing the cap and all associated components in a single swap with no additional hardware needed.
- Broad S-Series and T-Series Fitment — confirmed for S26, S36, T4000GP, and T4000 dust and slurry equipment, covering a wide range of Husqvarna's wet and dry extraction line.
- Prevents Fluid Loss and Contamination — a properly functioning tank cap keeps liquids contained and blocks debris ingestion, protecting internal components and maintaining consistent slurry or dust management performance.
- Genuine Husqvarna OEM Part — sourced directly from Husqvarna, this replacement meets the same design and material standards as the original component fitted at the factory.
The tank cap assembly seals the fluid reservoir on dust and slurry equipment, preventing leaks during operation and stopping contaminants from entering the tank. A damaged or ill-fitting cap can lead to fluid loss, inconsistent wet-cutting performance, and potential contamination of the water or slurry supply. Replacing a worn or broken cap with the correct OEM assembly restores a secure seal and keeps the extraction system operating as intended.
Part Details
| Part Number | 590477702 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Tank Cap Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Dust & Slurry Equipment | S26 |
| Dust & Slurry Equipment | S36 |
| Dust & Slurry Equipment | T4000GP |
| Dust & Slurry Equipment | T4000 |
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.
