Hirldeea 25-2 trimmer head assembly for easy replacement and reliable line feed.
Hirldeea STIHL-compatible trimmer head with bump-feed for quick line advancement.
Hirldeea 10mm bolt-size trimmer head attachment ensures secure installation.
Hirldeea dual-line trimmer head supports mowing and thinning tasks.
Hirldeea compatible head fits STIHL and KM models for versatile use.
Hirldeea durable trimmer head enables quick line replenishment after ground tap.

Hirldeea

Hirldeea 25-2 Trimmer Head for STIHL – 4002 710 2191/2108 | Bump-Feed Dual Line

High-performance patio lawn and garden made for confident daily results

$24.72

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Why customers choose Cera Garden

Effortless replacement for STIHL trimmers

The Hirldeea 25-2 Trimmer Head is designed to be a practical, ready-to-install upgrade for a wide range of STIHL and KM models. It combines a dependable bump-feed system with a dual-line setup, a convenient 10mm x 1.0 left-hand bolt, and a straightforward replacement path for part numbers 25-2 Autocut, 4002 710 2191, and 4002 710 2108. This combination aims to restore steady performance and help you tackle both edging and light clearing tasks with less downtime.

Key benefits at a glance

  • Replaces Part Number: 25-2 Autocut, 4002 710 2191, 4002 710 2108
  • Includes 10mm x 1.0 LHF bolt for secure, easy mounting
  • Dual-line design supports mowing and thinning for versatile use
  • Bump-and-feed mechanism feeds new line by tapping the head on the ground
  • Broad compatibility with STIHL FS90 onward models and related KM/FS series

Everyday use scenarios

Whether you’re trimming along a fence line, edging a lawn border, or thinning thick undergrowth, this head is built to respond quickly. The dual-line setup lets you switch between mowing and thinning without swapping parts, and the ground-tap feed keeps line length consistent so you can stay focused on the task at hand.

Installation is designed to be straightforward, reducing downtime between maintenance sessions. The 10mm bolt size provides a secure fit, helping you avoid wobble or slippage during use. Built with durability in mind, the head is prepared to handle regular outdoor work and the occasional bump against hard surfaces.

Compatibility and installation tips

This head is suitable for a broad list of STIHL models, including FS90 (from 2005), FS90R, FS91, FS94, FS100, FS110, FS111R, FS120, FS130, FS131, FS240, FS250, FS55, FS56, FS70, FS80, and more, as well as KM-series trimmers. When installing, align the bolt pattern and torque to the standard manufacturer guidelines, then test run at a low speed to confirm smooth operation before full use.

What’s included

  • Hirldeea 25-2 Trimmer Head
  • 10mm x 1.0 LHF bolt
  • Documentation summarizing compatible models

FAQ

Q: Is this 25-2 Trimmer Head compatible with STIHL FS models?

A: The head fits a wide range of STIHL FS models listed in the features, offering a straightforward replacement option.

Q: How do bump-feed and auto line adjustment work on this head?

A: Tap the head on the ground to advance line; the dual-line design supports mowing and thinning tasks.

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