Description
STIHL 4006 710 2100 AutoCut 5-2 Mowing Head
The STIHL 4006 710 2100 AutoCut 5-2 Mowing Head is a genuine STIHL replacement mowing head for select STIHL trimmers and brushcutters. This double-line cutting head is designed for trimming and mowing around obstacles such as fence posts, trees, shrubs, walls, curbs, landscaping edges, and other tight areas.
The AutoCut 5-2 uses a convenient tap-feed design, allowing nylon line to advance by tapping the mowing head on the ground during operation. It is commonly used with 0.080″ trimmer line and may also be used with optional 0.095″ line where approved for your machine.
Replacement note: STIHL 4006 710 2103 is cross-referenced and replaced by 4006 710 2100.
Always verify your full STIHL model number, original mowing head part number, line size, shaft configuration, mounting hardware, and owner’s manual before ordering.
Product Details
| Brand | STIHL |
|---|---|
| Part Number | 4006 710 2100 |
| Condensed Part Number | 40067102100 |
| Replaces / Cross Reference | 4006 710 2103 |
| Product Type | Mowing Head / Trimmer Head |
| Head Model | AutoCut 5-2 |
| Line Feed Type | Tap-action automatic line feed |
| Cutting Line | Double line |
| Standard Line Diameter | 0.080″ |
| Optional Line Diameter | 0.095″ where approved |
| OEM / Aftermarket | Genuine STIHL replacement part |
Key Features
- Genuine STIHL AutoCut 5-2 mowing head
- Part number 4006 710 2100
- Replaces / cross-references STIHL 4006 710 2103
- Double-line cutting head for trimming and mowing
- Tap-action feed advances nylon line during use
- Standard 0.080″ line diameter
- Optional 0.095″ line diameter where approved for your trimmer
- Ideal for trimming around fences, trees, walls, shrubs, curbs, and landscaping
- Factory-correct replacement when listed in your STIHL manual or parts diagram
Compatible STIHL Models
STIHL 4006 710 2100 AutoCut 5-2 is listed for select STIHL FS and FSE trimmers. Use the clickable fitment section below as a simplified reference only.
Always verify your full STIHL model number, serial number if applicable, original mowing head part number, drive shaft setup, mounting hardware, and owner’s manual before ordering.
Click/tap to view compatible STIHL trimmer models
- STIHL FS 38
- STIHL FS 40
- STIHL FS 45
- STIHL FS 46
- STIHL FS 50
- STIHL FSE 60
- STIHL FSE 71
- STIHL FSE 81
Important: Trimmer head compatibility can vary by model version, shaft style, guard, mounting hardware, and cutting attachment approval. Model fitment alone is not enough.
Replacement for STIHL 4006 710 2103
STIHL 4006 710 2103 is cross-referenced and replaced by STIHL 4006 710 2100. If your parts manual or previous mowing head references 4006 710 2103, verify that 4006 710 2100 is the current replacement for your specific trimmer setup before ordering.
Common Uses
The AutoCut 5-2 mowing head is designed for trimming and mowing tasks around common property obstacles and landscaping areas.
- Trimming around fence posts
- Cutting grass near trees and shrubs
- Trimming along walls and curbs
- Cleaning up lawn edges
- Mowing light grass and weeds
- General yard, landscape, and property maintenance
Why Choose a Genuine STIHL AutoCut Head?
Genuine STIHL mowing heads are designed to match approved STIHL trimmer and brushcutter applications. Using the correct mowing head helps maintain proper cutting performance, line feed operation, balance, and safety when installed with the correct guard and hardware.
- Designed for compatible STIHL trimmers
- Factory-style fit when listed for your machine
- Helps maintain proper cutting attachment balance
- Tap-feed design helps reduce downtime while trimming
- Correct replacement when specified by STIHL parts information
Fitment Checklist
Before ordering STIHL 4006 710 2100, confirm:
- Your full STIHL trimmer or brushcutter model number
- Your original mowing head part number
- Your machine is approved for the AutoCut 5-2 head
- Your shaft and mounting setup match this head
- Your trimmer guard is correct for the cutting attachment
- Your intended trimmer line diameter is approved for your machine
- Your owner’s manual lists this mowing head or replacement part
If you are unsure, contact P&P Small Engines with your STIHL model number and current mowing head information before ordering.
Part Number / Search Terms
STIHL 4006 710 2100 may also be searched as:
- 4006 710 2100
- 40067102100
- STIHL 4006 710 2100
- STIHL 4006 710 2103
- STIHL AutoCut 5-2
- STIHL AutoCut 5-2 mowing head
- STIHL AutoCut 5-2 trimmer head
- STIHL FS 38 mowing head
- STIHL FS 40 mowing head
- STIHL FS 45 mowing head
- STIHL FS 50 mowing head
- STIHL FSE 60 trimmer head
- STIHL FSE 71 trimmer head
- STIHL FSE 81 trimmer head
- STIHL tap feed trimmer head
- STIHL double line mowing head
Frequently Asked Questions
What is STIHL 4006 710 2100?
STIHL 4006 710 2100 is the AutoCut 5-2 mowing head for select STIHL FS and FSE trimmers.
What part number does it replace?
STIHL 4006 710 2100 replaces or cross-references STIHL 4006 710 2103.
What trimmer line does this head use?
The AutoCut 5-2 commonly uses 0.080″ line as the standard diameter, with optional 0.095″ line where approved for your specific machine.
How does the line feed work?
The nylon line is advanced by tap action. Tap the mowing head on the ground during operation to feed more line.
What models does this mowing head fit?
It is listed for select STIHL FS 38, FS 40, FS 45, FS 46, FS 50, FSE 60, FSE 71, and FSE 81 trimmers. Always verify your exact model and cutting attachment approval before ordering.
Can I order by trimmer model alone?
No. Mowing head fitment should be confirmed by model number, original mowing head, mounting setup, guard, line size, and owner’s manual.
P&P Small Engines stocks STIHL mowing heads, trimmer heads, trimmer line, brushcutter parts, cutting attachments, guide bars, saw chain, filters, spark plugs, belts, blades, and OEM replacement parts to help keep your equipment ready to work.
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