Products Description
STIHL FS160/FS220/FS280 Trimmer Head – M12 x 1.5 LH Thread
OEM-Spec Replacement Cutting Head for STIHL Professional Brushcutters
This trimmer head is a direct replacement for the cutting attachment on STIHL FS160, FS220, FS280, and a wide range of compatible brushcutters. Designed to match original equipment specifications, it features an M12 x 1.5 left-hand thread (LH) and is compatible with the STIHL AutoCut 40-2 and 46-2 systems.


Technical Profiles & Materials
Precision M12 x 1.5 Left-Hand Thread – This thread specification is standard for the FS160/FS220/FS280 series and ensures secure attachment to the drive shaft. The left-hand thread is designed to self-tighten during operation, preventing the head from loosening while cutting.
Broad Model Compatibility – Confirmed compatible with an extensive range of STIHL brushcutters, including: FS160, FS180, FS220, FS280, FS290, FS300, FS310, FS350, FS360, FS400, FS410, FS450, FS460, FS480, FS490, and many more.
Compatible with AutoCut Systems – This head is designed to work with the STIHL AutoCut 40-2 and 46-2 systems, which feature automatic line feed mechanisms. The AutoCut 46-2 is identified by OEM part numbers 4003 710 2115 and 4003 710 2189.
2.7mm Line Capacity – The head is designed for use with 2.7mm diameter cutting line, which is standard for professional-grade brushcutters. It is also compatible with slightly smaller lines such as 2.4mm and 2.6mm.
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Thread Size | M12 x 1.5 mm (left-hand thread) |
| 2 | Compatible Systems | STIHL AutoCut 40-2, 46-2 |
| 3 | OEM Part Numbers | 4003 710 2115, 4003 710 2189 |
| 4 | Line Diameter | 2.7mm (compatible with 2.4mm and 2.6mm) |
| 5 | Material | ABS / Robust plastic |
| 6 | Typical Weight | Approx. 650g |
| 7 | Fitment Note | Check your machine's thread type and size before ordering |
Products Application

Brushcutter Cutting Head Replacement
Direct replacement when the original trimmer head becomes worn, damaged, or the line feed mechanism fails. This head restores efficient cutting performance on FS160, FS220, FS280, and compatible models used in professional landscaping and grounds maintenance.

Professional Landscaping & Grounds Maintenance
For landscapers, grounds maintenance crews, and arborists, the trimmer head is a critical wear component. The AutoCut system ensures consistent line feed, reducing downtime for manual line adjustment.

Workshop & Repair Service
For repair centers servicing STIHL brushcutters, this trimmer head simplifies parts inventory by covering a wide range of FS and FR series models with a single part number. Available in individual or multi-pack options.
Quality and Craftsmanship Details



Products Package

About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
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BACKED BY 200+ TRUSTED FACTORY PARTNERS
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FAQ
Q: How do I confirm this trimmer head fits my STIHL brushcutter?
A:Check your machine model number on the identification plate and confirm the thread size is M12 x 1.5 with a left-hand thread. This head is compatible with FS160, FS220, FS280, and an extensive range of models listed above.
Q: What is the difference between AutoCut 40-2 and 46-2 systems?
A: Both systems share the same M12 x 1.5 left-hand thread mount. The AutoCut 46-2 is identified by OEM numbers 4003 710 2115 and 4003 710 2189, while the AutoCut 40-2 uses 4003 710 2189. Both use 2.7mm line and are compatible with the models listed.
Q: What cutting line should I use with this head?
A: This head is designed for 2.7mm diameter cutting line. It is also compatible with 2.4mm and 2.6mm line. Using the correct line diameter ensures optimal performance and prevents damage to the head mechanism.
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