C26-2 Dual Line Trimmer Head for Stihl Autocut FS55–FS250

Dual Line Replacement Trimmer Head C26-2 — Built for Stihl Autocut Models

Keep your Stihl trimmer running at peak performance with this high-quality replacement Autocut C26-2 dual-line trimmer head. Engineered for a precise fit on a wide range of Stihl FS and FR series trimmers, this bump-feed head is an affordable, durable solution for clean, efficient grass cutting and thinning. Made in Mainland China.

Why Choose This Trimmer Head?

• Dual-Line Design: Features a double-line configuration optimized for mowing and thinning — cover more ground with every pass.
• Bump-Feed Advancement: Simply tap the cutting head against the ground to automatically advance the nylon line — no tools needed, no downtime.
• 2.4mm Line Compatible: Works with standard 2.4mm nylon trimmer line for a reliable, consistent cut.
• Easy Installation: Designed as a direct drop-in replacement with a 10×1.0mm bottom thread hole (M10×1.0LH) — installs quickly and securely.
• Durable Construction: Made from sturdy plastic with a reinforced build to withstand regular use in demanding yard conditions.
• Replaces OEM Numbers: 4002 710 2137 / 4002 710 2169

Specifications

Compatible Models

This trimmer head is compatible with the following Stihl models:

• FS Series: FS55, FS56, FS70, FS80, FS85, FS90, FS91, FS94, FS110, FS111, FS120, FS130, FS131, FS240, FS250
• FR Series: FR131, FR460

Please verify your model number and thread direction before purchasing to ensure compatibility.

What's in the Box

• 1× Replacement Dual-Line Trimmer Head (C26-2 style)

Helpful Resources

For safe operation of outdoor power equipment, refer to the U.S. Consumer Product Safety Commission – Outdoor Power Equipment Safety guidelines.

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Frequently Asked Questions

Q: Which Stihl trimmer models is this C26-2 replacement trimmer head compatible with?

A: This replacement trimmer head is compatible with a wide range of Stihl Autocut FS and FR series models, including the FS55, FS56, FS70, FS80, FS85, FS90, FS91, FS94, FS110, FS111, FS120, FS130, FS131, FS240, FS250, FR131, and FR460. Always confirm your model's thread specification before installing.

Q: What size trimmer line does this head use?

A: This dual-line trimmer head is designed for use with 2.4mm diameter nylon trimmer line. Using the correct line diameter ensures smooth bump-feed advancement and optimal cutting performance.

Q: How does the bump-feed mechanism work?

A: The bump-feed system is simple and tool-free. As you trim, the nylon line wears down. When you need more line, briefly tap the cutting head against the ground while the trimmer is running — this action releases a small amount of fresh line automatically, so you can keep working without stopping.

Q: Is this trimmer head easy to install?

A: Yes! This head features a 10×1.0mm thread hole and is designed as a direct replacement for the Stihl Autocut C26-2. It threads directly onto your trimmer's drive shaft, making installation straightforward. Refer to your trimmer's user manual for step-by-step installation guidance.

Q: What OEM part numbers does this replace?

A: This trimmer head is a compatible replacement for Stihl OEM part numbers 4002 710 2137 and 4002 710 2169.