{"product_id":"rotary-14633-trimmer-gearbox-head-replaces-stihl-4137-640-0100","title":"Rotary 14633 Trimmer Gearbox Head replaces Stihl 4137 640 0100","description":"\u003cp\u003eRotary 14633 trimmer gearbox head is a complete replacement unit designed for Stihl string trimmers and brush cutters. Features integrated gears for reliable power transmission from engine to cutting head. Direct replacement for Stihl OEM part 4137 640 0100. Compatible with FR130, FR220, FR350, FR450, FR480, FS36, FS40, FS44, FS75, FS80, FS83, FS85, FS90, FS100, FS120, FS130, FS200, FS250, FS460, and FS-KM models, plus FT100 cultivator. Premium-grade construction ensures durability and consistent performance across demanding landscaping applications. Install as a complete assembly to restore full cutting capability.\u003c\/p\u003e\n\u003cp\u003eReplaces\u003cbr\u003eSTIHL: 4137-640-0100\u003cbr\u003e\u003cbr\u003eFits Models\u003cbr\u003eSTIHL: FS100, FS250, FS40, FS130, FS85, FS-KM, FS90, FS75, FS80, FR350, FS36, FS120, FT100, FS460, FS44, FS200, FR480, FR130, FS83, FR450, FR220\u003c\/p\u003e","brand":"Rotary","offers":[{"title":"Default Title","offer_id":43193043157201,"sku":"14633-RT","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/0351\/3041\/files\/14633.jpg?v=1784742416","url":"https:\/\/masterlandscapesupply.com\/products\/rotary-14633-trimmer-gearbox-head-replaces-stihl-4137-640-0100","provider":"Master Landscape Supply","version":"1.0","type":"link"}