Description
Overview:
The Spring Cassette Assembly for Husqvarna T540XP chainsaws is a genuine Husqvarna OEM component designed to restore smooth and reliable starter rewind performance. Supplied as a cassette containing a pre-wound return spring, it replaces worn or damaged units within the recoil starter system. The spring is typically made from tempered spring steel for resilience, housed in a robust carrier engineered for repeated pull-start cycles. Built for the T540XP and T540XPII, it fits correctly without modification and maintains the correct spring tension and alignment inside the starter cover. Use it to prevent starter rope drag, inconsistent rewind, and non-returning cords, helping your saw start predictably and reducing downtime. MPN 506910001 (also referenced as 506 91 00-01). Genuine Husqvarna part for dependable compatibility and service life.
Key Features:
- Genuine Husqvarna OEM part for precise fit and correct spring preload
- Pre-assembled cassette for quick, straightforward replacement
- Tempered spring steel and robust housing for durability under frequent use
- Restores consistent starter rope rewind and helps prevent jamming
- Designed for the demands of professional arborist and site work
- Direct replacement for 506910001 / 506 91 00-01
- Stable performance across repeated hot and cold starts
- Supports preventative maintenance and reduces unplanned downtime
Typical Applications:
Used to renew the recoil starter system when the pull cord fails to return, rewinds slowly, or the spring has fractured. Suitable for regular servicing of Husqvarna T540XP-series saws in arboriculture, landscaping, grounds maintenance, and hire fleets. Ideal after high-hour use, exposure to dirt or moisture, or following cord replacement where the original spring has lost tension.
Also known as:
Recoil starter spring cassette, rewind spring cartridge, pull-start return spring unit, starter spring module, recoil spring pack, starter rewind spring assembly, starter return spring cassette.
Fits Models:
T540XP, T540XPII
Alternate Part Numbers:
506 91 00-01, 506910001
