The Husqvarna 590472201 Wing Knob is a genuine OEM component designed for HTC and PG series floor grinders, including the HTC280, HTC510, PG280, PG400, PG450, HTC450, PG510, and PG510I. As an authentic Husqvarna part, this wing knob is manufactured to the same specification as the original, ensuring a correct fit without guesswork. DHS Equipment supplies this part to help keep your floor grinding equipment running at full capacity.
Key Features
- Genuine OEM Construction — Manufactured to Husqvarna's original specification, delivering the same material grade and thread engagement as the factory-installed knob.
- Tool-Free Hand Adjustment — Winged grip profile allows quick tightening and loosening by hand, maintaining secure component positioning during grinder operation.
- Direct Drop-In Replacement — Engineered to match the original mounting point exactly, so this wing knob installs directly without modification to the machine.
- Broad HTC and PG Series Compatibility — Confirmed fit across multiple Husqvarna floor grinder models, including the HTC280, HTC510, PG280, PG400, PG450, HTC450, PG510, and PG510I.
- Restored Operator Control — A worn or damaged wing knob can allow components to shift during operation; replacing it restores the secure, repeatable adjustments that consistent grinding results depend on.
A wing knob is a hand-tightened fastener used to secure adjustable components on floor grinders without the need for tools. On HTC and PG series machines, it plays a key role in holding guards, handles, or adjustable assemblies firmly in position during use. When a wing knob becomes stripped, cracked, or difficult to tighten, it compromises the operator's ability to lock components securely, which can affect both machine control and surface finish quality. Replacing it with a correct OEM part restores reliable, tool-free adjustment to the grinder.
Cross-reference part number 590472201 against your machine's parts diagram to confirm fitment before ordering. For questions about this part or your Husqvarna floor grinder, contact DHS Equipment for assistance.
Part Details
| Part Number | 590472201 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Wing Knob |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | HTC280 |
| Floor Grinder | HTC510 |
| Floor Grinder | PG280 |
| Floor Grinder | PG400 |
| Floor Grinder | PG450 |
| Floor Grinder | HTC450 |
| Floor Grinder | PG510I |
| Floor Grinder | PG510 |
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.
