{"product_id":"farwind-trimmer-gearbox-head-for-stihl-fs55-fs130-aluminum-10-tooth-oem-replacement","title":"Farwind Trimmer Gearbox Head for Stihl FS55–FS130 | Aluminum 10-Tooth OEM Replacement","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the Farwind Trimmer Gearbox Head, a direct OEM replacement designed for Stihl straight-shaft trimmers. It replaces the OEM parts 4137 640 0100, 4130 640 0100, and 4130 641 0300, offering a robust and practical upgrade when maintenance or part life prompts a refresh. The body is crafted from an aluminum alloy, delivering a sturdy, corrosion‑resistant shell that holds up to outdoor use while staying manageable in hand.\u003c\/p\u003e\n\u003ch3\u003eWhy it stands out\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces OEM parts: 4137 640 0100, 4130 640 0100, 4130 641 0300\u003c\/li\u003e\n  \u003cli\u003eAluminum alloy body delivers durability with corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eLightweight design for balanced handling and reduced fatigue\u003c\/li\u003e\n  \u003cli\u003eEasy to install, with straightforward blade or head changes\u003c\/li\u003e\n  \u003cli\u003e10 teeth and 1 in (25.4 mm) shaft diameter, square attachment holes for secure fitting\u003c\/li\u003e\n  \u003cli\u003eFits most straight-shaft trimmers and supports a broad model range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInside the head, a 10‑tooth gear works with a 1‑inch shaft and square holes, enabling smooth engagement with compatible blades and trimmer lines. This configuration aims to minimize downtime during maintenance and provide steady performance across mowing tasks. The design emphasizes practical, reliable use rather than decorative features, so you can rely on predictable operation during routine lawn care.\u003c\/p\u003e\n\u003ch3\u003eReal‑world use and expectations\u003c\/h3\u003e\n\u003cp\u003eIn everyday yard work, the lightweight aluminum body helps reduce operator fatigue during longer sessions while delivering durable performance in varying weather. The corrosion‑resistant construction remains relevant after exposure to grass, moisture, and outdoor elements. While results can vary with blade type and mowing conditions, many users appreciate the straightforward installation and the ability to refresh their trimmer’s drivetrain without a complete replacement.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and installation guidance\u003c\/h3\u003e\n\u003cp\u003eThe Farwind gearbox head is built for broad compatibility with Stihl straight‑shaft trimmers, including numerous FS series models. Its 10‑tooth gear, 1 in shaft, and square attachment holes support a wide range of blades and trimmer heads, simplifying upgrades for compatible machines.\u003c\/p\u003e\n\u003ch3\u003eKey specifications and benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM replacement parts: 4137 640 0100, 4130 640 0100, 4130 641 0300\u003c\/li\u003e\n  \u003cli\u003eAluminum alloy body for durability and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eLightweight construction for easier handling\u003c\/li\u003e\n  \u003cli\u003e10 teeth, 1 in\/25.4 mm shaft diameter, square attachment holes\u003c\/li\u003e\n  \u003cli\u003eBroad compatibility with many Stihl straight-shaft trimmers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOverall, this Farwind gearbox head presents a practical option for replacing worn components and maintaining consistent performance across lawn maintenance tasks. Consider it as a capable alternative to factory gearboxes when you’re focusing on reliable operation and easy maintenance.\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: Is the Farwind Trimmer Gearbox Head compatible with my Stihl trimmer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it fits a broad range of Stihl straight-shaft models including FS55, FS56, FS80, FS90, FS130, FS240, FS250, and FT100.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes this gearbox head a good replacement option?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It uses an aluminum body, offers corrosion resistance, is lightweight, easy to install, and replaces OEM parts 4137 640 0100, 4130 640 0100, and 4130 641 0300.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Farwind","offers":[{"title":"Default Title","offer_id":43980130123910,"sku":"B07K8C8V62","price":35.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/farwind-gearbox-head-stihl-fs55-profile.jpg?v=1778685584","url":"https:\/\/patiozora.com\/products\/farwind-trimmer-gearbox-head-for-stihl-fs55-fs130-aluminum-10-tooth-oem-replacement","provider":"PatioZora","version":"1.0","type":"link"}