Durable nylon recoil starter and pull cord mechanism for long life and reliable starts with your trimmer. - Durable nylon construction: The recoil starter and pull cord mechanism are made from PA6 nylon and aluminum alloy, delivering extended durability and dependable operation in the field. - Perfect fit for Trimmer 40-5: Specifically engineered to fit the Trimmer 40-5, providing a secure fit and optimal performance. - Broad compatibility: Designed for multiple trimmer models and serves as a replacement option for older parts. - Outdoor ready materials: Components use PA6 nylon and aluminum alloy to withstand outdoor use and challenging environments. - Use scenarios: - Replace a worn or faulty starter on the Trimmer 40-5 to restore easy, reliable starting. - Keep as a ready replacement part for routine maintenance or demanding outdoor work (lawn care, weed trimming, edging). - Use as an upgrade or spare for older trimmers to minimize downtime on remote job sites.