The Husqvarna 542043054 Key is a genuine OEM replacement designed for the FS3500G and FS3500E floor saws. Sourced directly from Husqvarna, this component delivers the exact fit and tolerancing required to maintain correct mechanical engagement within the drivetrain assembly. Cross-reference part number 542043054 against your parts diagram to confirm fitment before ordering. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- Genuine OEM Construction — Manufactured to Husqvarna's exact material and dimensional specifications, ensuring correct load transfer and mechanical retention within the assembly.
- Direct Drop-In Replacement — Engineered to seat precisely in the original keyway, restoring proper shaft-to-component engagement without additional fitting or machining.
- Confirmed Floor Saw Fitment — Compatible with the FS3500G and FS3500E floor saws, two of Husqvarna's professional-grade walk-behind slab cutting machines.
- Restored Drive Integrity — A correctly fitted key locks rotating components to their shaft, preventing slippage that can cause erratic blade performance or accelerated wear on mating surfaces.
- Precision Sizing — Held to tight dimensional tolerances so the key fills the keyway fully, distributing torque loads evenly and protecting both shaft and hub from damage.
A key is a small but critical mechanical fastener that sits in a machined slot — the keyway — between a rotating shaft and a hub or gear, locking them together so they turn as a single unit. In a floor saw like the FS3500G and FS3500E, this connection is essential for transmitting engine or motor torque reliably to the cutting system. When a key shears, deforms, or works loose, the driven component can slip on the shaft, resulting in lost cutting power, vibration, or damage to the shaft and hub that can escalate into a more costly repair if not addressed promptly.
Part Details
| Part Number | 542043054 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Key |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS3500G |
| 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.
