The Husqvarna 590488501 Torsion Spring is a genuine OEM component designed for the K770 disc cutter. Sourced directly from Husqvarna, this spring meets the exact material and tension specifications required for correct operation on the K770. DHS Equipment supplies this part to help keep your equipment running at full capacity. Cross-reference part number 590488501 against your parts diagram to confirm fitment before ordering.
Key Features
- Genuine OEM Tension Spec — manufactured to Husqvarna's exact torsion rating, ensuring the spring delivers the correct rotational force for consistent mechanical response on the K770.
- Direct Drop-In Replacement — engineered to match the original mounting geometry and hook configuration, allowing straightforward installation without modification.
- K770 Disc Cutter Fitment — specifically validated for the K770, one of Husqvarna's most widely used handheld power cutters in the construction and concrete cutting trades.
- Restored Mechanical Function — a worn or fatigued torsion spring can cause inconsistent return action or component misalignment; replacing it with this OEM part restores the intended mechanical behavior of the assembly.
- Husqvarna OEM Quality — produced to the same standards as the original part, using spring steel selected for the load cycle demands of a professional-grade power cutter.
A torsion spring stores and releases rotational energy to return a moving component — such as a guard, lever, or tensioning arm — to its resting position after actuation. On a power cutter like the K770, this function is critical to keeping mechanical assemblies operating with the correct timing and return force. When a torsion spring loses its set, cracks, or breaks, the affected component may fail to return fully or operate erratically, which can impact both cutting performance and safe machine handling.
Part Details
| Part Number | 590488501 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Torsion Spring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Disc 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.
