{"product_id":"hirldeea-25-2-trimmer-head-replaces-4002-710-2191-2108-for-stihl-fs-weed-eater","title":"Hirldeea 25-2 Trimmer Head – Replaces 4002 710 2191\/2108 for STIHL FS \u0026 Weed Eater","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eUpgrade your yard work with the Hirldeea 25-2 Trimmer Head, a smart replacement designed to refresh worn components and keep your trimmer ready for the next pass. Built around a reliable bump-and-feed action and a sturdy 10 mm bolt interface, this head can help you maintain consistent line length and mowing performance across a broad range of outdoor tasks.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes it a practical upgrade\u003c\/h3\u003e\n\u003cp\u003eCore features and design choices deliver a balanced mix of ease, versatility, and value. The head replaces common part numbers such as 25-2 Autocut, 4002 710 2191, and 4002 710 2108, so you can swap in a like-for-like option without guesswork. It includes a 10 mm x 1.0 LHF bolt size for straightforward mounting and ships with dual nylon lines suitable for both mowing and thinning work. The bump-and-feed mechanism is designed to eliminate constant line rewinds: you simply tap the head against firm ground to automatically advance fresh line as needed.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eReplaces Part Numbers: 25-2 Autocut, 4002 710 2191, 4002 710 2108\u003c\/li\u003e\n\u003cli\u003eIncludes 10 mm x 1.0 LHF bolt for quick installation\u003c\/li\u003e\n\u003cli\u003eDual line for two cutting tasks: mowing and thinning\u003c\/li\u003e\n\u003cli\u003eBump-and-feed head with ground-tap line advancement\u003c\/li\u003e\n\u003cli\u003eDesigned for wide compatibility with STIHL FS series and Weed Eater models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility snapshot\u003c\/h3\u003e\n\u003cp\u003eThe Hirldeea 25-2 head is suitable for a long list of STIHL FS models—from FS90 and FS90R through FS131 and FS460R (on models from 2011 onward)—as well as various Weed Eater configurations. It serves many versions across older and newer lines, including FS44, FS55, FS56, FS70, FS80, FS83, FS85, and related KM and FR series. If your trimmer accepts the 25-2 Autocut style head, this option is intended to be a drop-in replacement.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you might notice in use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFaster line replenishment via bump-and-feed, reducing downtime\u003c\/li\u003e\n\u003cli\u003eAccurate line length control for clean, even cuts\u003c\/li\u003e\n\u003cli\u003eReliable performance across mowing and thinning tasks\u003c\/li\u003e\n\u003cli\u003eCompact, robust profile designed for frequent outdoor use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation and care tips\u003c\/h3\u003e\n\u003cp\u003eBefore you install, confirm the bolt size and thread pitch match your trimmer’s mounting hardware. After mounting, test the feed action on a soft surface to verify smooth line advancement. Periodically inspect the head for wear and replace as needed to sustain consistent cutting behavior.\u003c\/p\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: What models is the Hirldeea 25-2 Trimmer Head compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It replaces part numbers 25-2, 4002 710 2191, 4002 710 2108, and fits a broad range of STIHL FS and weed eater models listed in the product data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How does the bump line feed work with this head?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The bump-and-feed action automatically advances the nylon line after tapping the head on the ground, helping you maintain cutting length between refills without manual adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hirldeea","offers":[{"title":"Default Title","offer_id":45740883411130,"sku":"B096Y87XBD","price":54.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/hirldeea-25-2-trimmer-head-bump-feed.jpg?v=1774799714","url":"https:\/\/gardencanada.ca\/products\/hirldeea-25-2-trimmer-head-replaces-4002-710-2191-2108-for-stihl-fs-weed-eater","provider":"Garden Canada","version":"1.0","type":"link"}