The Husqvarna 597271801 Parallel Key is a genuine OEM component designed for the HTC280 and HTC450 floor grinders. This small but critical drive component ensures precise rotational alignment between the shaft and its mating hub, maintaining the torque transfer integrity that these machines depend on during grinding operations. DHS Equipment supplies this part to help keep your equipment running at full capacity with the correct OEM specification component.
Key Features
- Genuine OEM Torque Spec — Manufactured to Husqvarna's exact dimensional tolerances, ensuring the key seats correctly in the keyway and transmits torque without play or slippage.
- Direct Drop-In Replacement — Engineered to match the original keyway geometry on the HTC280 and HTC450 drive shafts, allowing straightforward installation without modification.
- Compatible With HTC280 and HTC450 Floor Grinders — Specifically validated for these two professional-grade floor grinder models; cross-reference 597271801 against your parts diagram to confirm fitment.
- Protects Drive Train Components — A correctly fitted parallel key prevents shaft-to-hub micro-movement that would otherwise accelerate wear on both the shaft and the hub bore over time.
- Restores Full Power Transmission — A worn or sheared key causes vibration, uneven grinding head engagement, and loss of drive. Replacing it with this OEM part restores clean, consistent power transfer to the grinding heads.
A parallel key is a precision-machined metal component that locks a rotating shaft to a hub, pulley, or drive element so they turn together as a single unit. It sits in a matching keyway slot cut into both the shaft and the hub, preventing rotational slippage while still allowing the assembly to be disassembled for service. When a parallel key wears, deforms, or shears — typically from shock loading or a loose fit — the driven component loses its positive connection to the shaft, resulting in vibration, reduced grinding efficiency, or complete loss of drive to the grinding heads. Replacing the key promptly with the correct OEM part, such as this Husqvarna 597271801, restores the rigid mechanical connection and protects the more costly shaft and hub components from further damage.
Part Details
| Part Number | 597271801 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Parallel Key |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | HTC280 |
| Floor Grinder | HTC450 |
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.
