The Husqvarna 543084140 Blade Shaft is a genuine OEM component designed for the FS309 floor saw. Sourced directly from Husqvarna, this shaft is manufactured to the exact tolerances required for correct blade seating, rotation, and power transfer on the FS309. Cross-reference part number 543084140 against your parts diagram before ordering to confirm fitment for your specific machine configuration. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM-Spec Dimensional Accuracy — Manufactured to Husqvarna's exact shaft geometry and hardness specifications, ensuring correct blade mounting concentricity and eliminating runout that can damage blades or the cutting head.
- Direct Drivetrain Replacement — Engineered to install into the FS309 floor saw's existing shaft housing and bearing seats without alteration, restoring the original drivetrain assembly.
- Confirmed FS309 Fitment — Designed specifically for the FS309 floor saw, giving you confidence that this shaft matches the correct bore diameter, keyway profile, and thread specification for that machine.
- Restored Cutting Performance — A worn or damaged blade shaft can cause blade wobble, uneven cuts, and accelerated wear on bearings and flanges. Replacing it with a genuine OEM shaft brings the cutting system back to its original operating standard.
- Operational Safety — The blade shaft is a load-bearing component under significant rotational stress during cutting. A genuine replacement maintains the structural integrity required to safely handle blade speeds and cutting loads on concrete and asphalt.
The blade shaft is the central rotating component that transfers engine power to the diamond blade on a floor saw. It holds the blade flanges in alignment, maintains the correct cutting plane, and absorbs the lateral and torsional forces generated during slab cutting. When a blade shaft is worn, bent, or damaged, the result is blade wobble, loss of cut accuracy, and increased stress on surrounding bearings and seals — conditions that can progress quickly into more extensive drivetrain damage if not addressed. Replacing the shaft with a genuine OEM part restores the mechanical foundation the entire cutting assembly depends on.
Part Details
| Part Number | 543084140 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Blade Shaft |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS309 |
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.
