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The STIHL AutoCut 11-2 Mowing Head is a two-line semi-automatic trimmer head designed for mowing, trimming around obstacles, edging along borders, and general clearing work with compatible STIHL trimmers and KombiSystem equipment.
Simply tap the mowing head against the ground while operating to advance additional cutting line. The AutoCut 11-2 is compatible with select STIHL models including the FS 36, FS 40, FS 75, FE 55 and FSB-KM.
STIHL Part Number: 4004 710 2105
Also formatted as: 4004-710-2105 and 40047102105
STIHL AutoCut 11-2 Highlights
- STIHL AutoCut 11-2 mowing head
- Part Number: 4004 710 2105
- Two-line cutting system
- Semi-automatic line advancement
- Tap head on the ground to advance line
- Designed for mowing and clearing work
- Useful around walls, stairs and landscape borders
- Uses durable flexible mowing line
- Compatible with select STIHL FS, FE and FSB-KM equipment
STIHL AutoCut 11-2 Mowing Head
The AutoCut 11-2 is designed for routine mowing and trimming work where flexible mowing line is preferred over a rigid cutting blade.
Its two-line cutting system makes it suitable for:
- Grass trimming
- General mowing work
- Clearing around walls
- Trimming around stairs
- Cleaning landscape borders
- Working around obstacles
- Surface clearing
Semi-Automatic Tap-to-Advance Trimmer Head
The AutoCut 11-2 uses a semi-automatic line-advancement system.
When additional mowing line is needed, tap the rotating mowing head against the ground. The head advances additional line without requiring the operator to stop and manually pull more line from the spool.
This makes the AutoCut 11-2 convenient for longer trimming jobs where cutting line gradually wears down.
STIHL FS 36 Trimmer Head
If you're looking for a STIHL FS 36 trimmer head or FS 36 trimmer head replacement, the supplied compatibility information lists the AutoCut 11-2 / 4004 710 2105 for the STIHL FS 36.
Always compare the model designation on your equipment before ordering a replacement mowing head.
STIHL FS 40 Trimmer Head
The AutoCut 11-2 is also listed for compatible STIHL FS 40 trimmers.
Its two-line bump-feed design provides convenient mowing-line advancement for normal lawn and landscape trimming.
STIHL FS 75 Trimmer Head
The supplied fitment information also includes the STIHL FS 75.
If replacing an existing head on an FS 75, verify the original mowing-head configuration before ordering.
STIHL FE 55 & FSB-KM Compatibility
Additional supplied applications for STIHL 4004 710 2105 include:
- STIHL FE 55
- STIHL FSB-KM
The FSB-KM is a KombiSystem trimmer/brushcutter attachment, while the FE 55 is an edger application. Confirm the exact equipment model before installation.
Compatible STIHL Models
| STIHL Model | AutoCut 11-2 Compatibility |
|---|---|
| FS 36 | Listed |
| FS 40 | Listed |
| FS 75 | Listed |
| FE 55 | Listed |
| FSB-KM | Listed |
STIHL AutoCut 11-2 Specifications
| Product Detail | Specification |
|---|---|
| Brand | STIHL |
| Model | AutoCut 11-2 |
| Product Type | Semi-Automatic Mowing / Trimmer Head |
| Cutting System | Two mowing lines |
| Line Advancement | Semi-automatic tap-to-advance |
| Line Diameter | 2 mm listed configuration |
| STIHL Part Number | 4004 710 2105 |
| UPC | 795711043728 |
Flexible STIHL Mowing Line
The AutoCut system uses flexible mowing line designed to wear gradually during cutting rather than the rigid metal or polymer blades used by some other STIHL cutting heads.
Different STIHL mowing-line shapes, cross sections and diameters are available depending on the mowing head and intended application.
When Should I Replace My STIHL Trimmer Head?
A complete replacement head may be appropriate when the original head housing, spool, line-advancement mechanism or other components are worn or damaged beyond normal service.
If only the mowing line is depleted, the complete head may not need replacement. Inspect the existing head and determine whether line, internal components, or the entire assembly is required.
STIHL 4004 710 2105
This mowing head may be searched using several part-number formats:
- 4004 710 2105
- 4004-710-2105
- 40047102105
- STIHL 4004 710 2105
These number formats identify the AutoCut 11-2 mowing head covered by this listing.
Frequently Asked Questions
What is STIHL part number 4004 710 2105?
4004 710 2105 is the STIHL AutoCut 11-2 semi-automatic two-line mowing head.
What trimmer head fits a STIHL FS 36?
The supplied STIHL compatibility information lists the AutoCut 11-2 / 4004 710 2105 for the FS 36.
Does the AutoCut 11-2 fit the STIHL FS 40?
Yes. The FS 40 is included in the supplied compatibility information.
Does the AutoCut 11-2 fit a STIHL FS 75?
Yes. The supplied product information lists the FS 75 as an application.
Does 4004 710 2105 fit the STIHL FE 55?
Yes. The FE 55 is listed among the compatible applications supplied for this mowing head.
Does the AutoCut 11-2 fit FSB-KM?
Yes. The supplied compatibility information includes the STIHL FSB-KM KombiSystem trimmer/brushcutter attachment.
How does the STIHL AutoCut 11-2 feed more line?
It uses a semi-automatic system. Tap the mowing head against the ground while it is operating to advance additional mowing line.
Is AutoCut 11-2 a two-line trimmer head?
Yes. The AutoCut 11-2 uses two mowing lines for cutting and clearing work.
Is 4004-710-2105 the same as 4004 710 2105?
Yes. They are different formatting styles for the same STIHL part number.
STIHL AutoCut 11-2 – 4004 710 2105
Choose the STIHL AutoCut 11-2 Mowing Head when you need the exact 4004 710 2105 semi-automatic two-line cutting head for compatible STIHL equipment including the FS 36, FS 40, FS 75, FE 55 and FSB-KM.
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