Description
Overview:
The clutch spring is a small but critical component of the centrifugal clutch used on Husqvarna handheld machines. This Genuine Husqvarna part is made from hardened spring steel to withstand repeated engagement and heat, keeping your tool dependable under daily use. It restores correct clutch tension so the drive engages at the right engine speed, helping your machine idle smoothly and pick up cleanly under load. Designed for Husqvarna pole pruners and related 525-series machines, including the 525P4S and 525P5S, it is a direct replacement that maintains OEM performance without modification. Supplied under MPN 576400701 (OEM No. 576 40 07-01), it is a precise fit for the specified models and supports consistent, safe operation across pruning and trimming tasks.
Key Features:
- Genuine Husqvarna part for correct fit, function, and reliability
- Hardened spring steel construction resists fatigue and heat
- Restores proper clutch engagement to prevent drive drag at idle
- Consistent take-up for smoother acceleration and cutting control
- Helps protect the engine and drive system from unnecessary strain
- Direct replacement with no modifications required
- Supports regular maintenance schedules and reduces unplanned downtime
- Suitable for professional and domestic users maintaining 525-series machines
Typical Applications:
Used to replace a weakened or broken clutch spring on Husqvarna 525-series pole pruners and trimmers. Common symptoms include head or chain movement at idle, sluggish pick-up, or inconsistent drive engagement. Fitting a new spring restores correct clutch operation for reliable pruning, sectioning branches, edging, trimming, and brush cutting in gardens, estates, and commercial grounds.
Also known as:
Clutch shoe spring, centrifugal clutch spring, drive clutch spring, pole pruner clutch spring, 525-series clutch spring, Husqvarna clutch return spring, pole saw clutch spring, trimmer/brushcutter clutch spring.
Fits Models:
524 l, 524L, 525 LS Mark II, 525 LST Mark II, 525 RXT, 525L, 525LK, 525LS, 525LST, 525P4S, 525P5S, 525PT5S, 525RJD, 525RJX, 525RK, 525RS, 525RX, 525RX Mark II, 525RXT, 525RXT Mark II
Alternate Part Numbers:
576 40 07-01, 576400701
Product Specifications
| L&S Part No. | 576 40 07 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 576400701 |
| Unit of Sale | 1 |
| Applications | 524 l, 524L, 525 LS Mark II, 525 LST Mark II, 525 RXT, 525L, 525LK, 525LS, 525LST, 525P4S, 525P5S, 525PT5S, 525RJD, 525RJX, 525RK, 525RS, 525RX, 525RX Mark II, 525RXT, 525RXT Mark II |
| Machine Type | Pole Pruners |
| Fits Brands | Husqvarna |
| Fits Models | 525P4S | 525P5S | 525PT5S | 525L | 525LK | 525LS | 525LST | 525RJD | 525RJX | 525RK | 525RS | 525RX | 525RXT | 524 L | 525 LS Mark II | 525 LST Mark II | 525RX Mark II | 525RXT Mark II |
