The Husqvarna 590370401 Dust Seal is a genuine OEM component designed for the K770 power cutter. Sourced directly through the Husqvarna parts program, this seal delivers an exact match to the original specification — ensuring proper fitment without adjustment or modification. DHS Equipment supplies this part to help keep your K770 running at full capability.
Key Features
- Genuine OEM Sealing Material — manufactured to Husqvarna's original compression and material grade specs, maintaining the same barrier performance as the factory-installed seal.
- Exact-Fit Replacement — engineered to drop into the same seat as the original, with matching dimensions that allow straightforward installation on the K770.
- K770 Power Cutter Compatibility — verified fitment for the K770, one of Husqvarna's most widely used handheld power cutters in concrete and masonry applications.
- Internal Component Protection — an intact dust seal keeps abrasive concrete dust and slurry out of critical internal areas, preserving bearings and moving parts from accelerated wear.
- Verified Part Number — cross-reference 590370401 against your K770 parts diagram to confirm the correct position before installation.
A dust seal forms a barrier between the outside environment and the internal components of the power cutter, preventing fine dust, grit, and moisture from migrating into areas where they can cause serious wear. On a machine like the K770 — used regularly in dusty concrete and masonry cutting environments — this seal takes on considerable stress. When it deteriorates or fails, abrasive particles reach bearings and other precision components, leading to premature wear and eventual mechanical failure. Replacing a worn dust seal promptly restores that protective barrier and extends the service life of the surrounding components.
Part Details
| Part Number | 590370401 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Dust Seal |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K770 |
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.
