Description
Overview:
This torsion spring is a genuine Husqvarna spare designed for precise, reliable performance in Husqvarna battery chainsaws such as the 436LI and 536LIXP. Manufactured from high‐tensile spring steel with a durable, corrosion‐resistant finish, it delivers controlled torsional force to return or hold moving parts in their correct position. This helps keep mechanisms operating smoothly and safely under regular use. As a direct replacement for OEM No. 577 64 98-01, it fits correctly without modification and restores the intended feel and function of the original assembly. Suitable for professional and domestic users, it is built to withstand outdoor conditions and frequent cycling, making it a dependable component for routine maintenance and repairs.
Key Features:
- Genuine Husqvarna part for assured compatibility and quality
- Direct OEM replacement: 577 64 98-01 (also 577649801) for like‐for‐like fit
- High‐tensile spring steel resists fatigue and deformation under load
- Corrosion‐resistant finish suited to outdoor and damp environments
- Provides stable, repeatable torsional force for consistent operation
- Helps restore smooth return action of moving components and controls
- Engineered to Husqvarna tolerances for reliable seating and alignment
- Suitable for both rear‐handle and top‐handle models listed
- Supports long service life when installed and used as specified
- Clear orientation makes installation straightforward for competent users
Typical Applications:
Used to maintain or restore the return and positioning action of moving parts within the chainsaw's control or guard mechanisms. Ideal when the original spring has weakened, bent, or broken after heavy use, exposure to the elements, or accidental impact. Common during scheduled overhauls to keep battery chainsaws operating smoothly and safely.
Also known as:
Torsional return spring, return spring, coil torsion spring, twist spring, double‐leg torsion spring, wound spring for chainsaw mechanisms.
Genuine Status:
Genuine Husqvarna Part
Fits Models:
330i, 436LI, 535i XP, 535iXP, 536Li XP, 536LiXP, T535i XP, T535iXP, T536Li XP, T536LiXP
Alternate Part Numbers:
577 64 98-01, 577649801
Product Specifications
| L&S Part No. | 577 64 98 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 577649801 |
| Unit of Sale | 1 |
| Applications | 330i, 436LI, 535i XP, 535iXP, 536Li XP, 536LiXP, T535i XP, T535iXP, T536Li XP, T536LiXP |
| Machine Type | Cordless Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 436LI | 536LIXP | 535i XP | T535i XP | 330i | 436Li | 536Li XP | T536Li XP |
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