{"product_id":"hirldeea-25-2-trimmer-head-for-stihl-4002-710-2191-2108-bump-feed-dual-line","title":"Hirldeea 25-2 Trimmer Head for STIHL – 4002 710 2191\/2108 | Bump-Feed Dual Line","description":"\u003ch2\u003eEffortless replacement for STIHL trimmers\u003c\/h2\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplaces Part Number: 25-2 Autocut, 4002 710 2191, 4002 710 2108\u003c\/li\u003e\n\u003cli\u003eIncludes 10mm x 1.0 LHF bolt for secure, easy mounting\u003c\/li\u003e\n\u003cli\u003eDual-line design supports mowing and thinning for versatile use\u003c\/li\u003e\n\u003cli\u003eBump-and-feed mechanism feeds new line by tapping the head on the ground\u003c\/li\u003e\n\u003cli\u003eBroad compatibility with STIHL FS90 onward models and related KM\/FS series\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEveryday use scenarios\u003c\/h3\u003e\u003cp\u003eWhether 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.\u003c\/p\u003e\u003cp\u003eInstallation 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.\u003c\/p\u003e\u003ch3\u003eCompatibility and installation tips\u003c\/h3\u003e\u003cp\u003eThis 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. \u003c\/p\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHirldeea 25-2 Trimmer Head\u003c\/li\u003e\n\u003cli\u003e10mm x 1.0 LHF bolt\u003c\/li\u003e\n\u003cli\u003eDocumentation summarizing compatible models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this 25-2 Trimmer Head compatible with STIHL FS models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The head fits a wide range of STIHL FS models listed in the features, offering a straightforward replacement option.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do bump-feed and auto line adjustment work on this head?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Tap the head on the ground to advance line; the dual-line design supports mowing and thinning tasks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hirldeea","offers":[{"title":"Default Title","offer_id":48178184388852,"sku":"B096Y87XBD","price":24.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/6652\/0820\/files\/hirldeea-25-2-trimmer-head-assembly.jpg?v=1778366104","url":"https:\/\/www.cerapatiogarden.com\/products\/hirldeea-25-2-trimmer-head-for-stihl-4002-710-2191-2108-bump-feed-dual-line","provider":"Cera Garden","version":"1.0","type":"link"}