The Husqvarna 581189101 Blade Shaft is a genuine OEM replacement designed for the FS400LV floor saw. Sourced directly from Husqvarna, this component delivers an exact match to the original specification, ensuring proper blade mounting and alignment on the FS400LV. DHS Equipment supplies this part to help keep your equipment running at full capacity. Cross-reference part number 581189101 against your parts diagram to confirm fitment before ordering.
Key Features
- Genuine OEM Construction — Manufactured to Husqvarna's original dimensional tolerances, ensuring the shaft meets the same material grade and load-bearing spec as the part it replaces.
- Direct-Fit Replacement — Engineered to mount into the FS400LV blade drive assembly using the original hardware and mounting points, with no adaptation needed.
- FS400LV Floor Saw Compatibility — Specifically validated for the FS400LV walk-behind flat saw, so fitment is straightforward and confident.
- Restored Blade Stability — A correctly seated blade shaft maintains true blade rotation and cutting depth consistency — a worn or damaged shaft introduces runout that degrades cut quality and accelerates blade wear.
- Operational Safety — The blade shaft is a structural drive component; using a correctly rated OEM shaft maintains the mechanical integrity of the blade mounting system and reduces the risk of blade movement under load.
The blade shaft is the central rotating component that connects the drive system to the cutting blade on a floor saw. It transmits power from the engine or motor directly to the blade, maintaining the rotational alignment necessary for accurate, controlled cuts in concrete and asphalt. When a blade shaft is worn, bent, or damaged, the result is visible blade wobble, uneven cutting depth, excessive vibration, and accelerated wear on surrounding bearings and blade flanges — making prompt replacement critical to both cut quality and machine longevity.
Part Details
| Part Number | 581189101 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Blade Shaft |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS400LV |
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.
