The Husqvarna 590805901 Driving Pulley is a genuine OEM component designed for K760, K760II, and K770 power cutters. Sourced directly from Husqvarna, this pulley meets the exact dimensional and material specifications of the original part, ensuring proper belt engagement and power transfer from the engine to the cutting blade. Cross-reference part number 590805901 against your machine's 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 Belt Drive Geometry — Machined to Husqvarna's original pulley profile, maintaining correct belt wrap angle and tension for consistent power delivery.
- Direct Drop-In Replacement — Matches the original mounting bore, keyway, and hub dimensions for straightforward installation on compatible power cutters.
- Fits K760, K760II, and K770 Power Cutters — Verified fitment across this family of Husqvarna handheld power cutters; confirm using part number 590805901 and your parts diagram.
- Restored Cutting Performance — A worn or damaged driving pulley causes belt slippage, uneven blade speed, and loss of cutting power; replacing it restores full, consistent output to the blade.
- Durable Construction — Built from materials selected by Husqvarna to withstand the high-RPM, high-vibration demands of professional power cutter operation over extended service intervals.
The driving pulley is a core element of the power cutter's belt drive system, transmitting engine torque through the drive belt to spin the blade at cutting speed. When the pulley wears, cracks, or becomes damaged, the belt can slip or shed entirely, causing the blade to lose speed or stop cutting under load. Replacing the driving pulley with a correct OEM unit restores the mechanical link between engine and blade, ensuring the cutter delivers its full rated performance with every cut.
Part Details
| Part Number | 590805901 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Driving Pulley |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K760II |
| Power Cutter | K760 |
| Power Cutter | K770 |
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.
