The Husqvarna 542163328 Key Button is a genuine OEM replacement designed for the FS3500G, FS4800D, and FS3500E floor saws. As a factory-sourced component, this part matches the original specifications and fits directly into the assembly without alteration. DHS Equipment supplies this part to help keep your equipment running at full capacity. Cross-reference part number 542163328 against your parts diagram to confirm fitment before ordering.
Key Features
- Genuine OEM Construction — Sourced directly from Husqvarna, this key button is manufactured to the same tolerances and material grade as the original, ensuring correct engagement and retention within the assembly.
- Direct Drop-In Replacement — Engineered to align precisely with the keyway and mating components, this button installs into the designated slot without modification to the surrounding hardware.
- Confirmed Floor Saw Fitment — Compatible with the FS3500G, FS4800D, and FS3500E floor saws, covering both gasoline and electric variants within the FS series.
- Restores Positive Drive Engagement — A worn or missing key button can cause slippage between rotating components, leading to power loss or uneven blade performance. Replacing it restores solid mechanical coupling and consistent drive transfer.
A key button — also known as a woodruff or drive key — is a small but critical component that locks a rotating shaft to a hub, pulley, or blade-drive element, preventing relative rotation between the two. On a floor saw like the FS3500G, FS4800D, or FS3500E, it ensures that rotational force is transmitted cleanly and consistently from the drive shaft to the connected component. When this part shears, wears, or goes missing, slippage occurs, causing erratic or lost drive output that can compromise both cut quality and operator control.
Part Details
| Part Number | 542163328 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Key Button |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS3500G |
| Floor Saw | FS4800D |
| Floor Saw | FS3500E |
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.
