{"title":"FS 91","description":"\u003ch2 class=\"h4\"\u003eFS 91 OEM Parts\u003c\/h2\u003e\n\n\u003cp\u003eFind genuine STIHL OEM parts for an FS 91 trimmer or brushcutter for maintenance, repairs, and replacements. Search by OEM reference, machine version, and system, then confirm the product title, description, quantity, and fitment information before ordering.\u003c\/p\u003e\n\n\u003ch2 class=\"h4\"\u003eIdentify the Repair Area Before You Search\u003c\/h2\u003e\n\n\u003cp\u003eStart with the symptom and inspect the complete connected system. A fuel leak, hard starting, poor acceleration, throttle problem, unusual vibration, damaged guard, loose cutting head, or worn gearbox can each have several causes. Find the part that is responsible for the condition instead of replacing components at random. Inspect nearby fasteners, seals, mounts, clamps, and connecting parts at the same time so that the repair is complete.\u003c\/p\u003e\n\n\u003ch2 class=\"h4\"\u003eFS 91 Parts by Service System\u003c\/h2\u003e\n\n\u003cp\u003eDepending on current inventory, this collection may include genuine STIHL FS 91 OEM components for common service and repair systems:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eair filter, intake, carburetor, fuel tank, fuel line, filter, vent, and fuel-system parts;\u003c\/li\u003e\n  \u003cli\u003estarter housing, recoil starter, rope, pulley, spring, grip, ignition, wiring, and switch components;\u003c\/li\u003e\n  \u003cli\u003ethrottle trigger, stop switch, lockout, control cable, handle, and related control hardware;\u003c\/li\u003e\n  \u003cli\u003eclutch, drive shaft, shaft tube, gearbox, couplings, bearings, and mounting components;\u003c\/li\u003e\n  \u003cli\u003ecutting head, guard, deflector, blade or line attachment pieces, and fasteners;\u003c\/li\u003e\n  \u003cli\u003eengine, cylinder, piston, crankcase, gaskets, seals, covers, caps, clips, and hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eUse the system category to narrow results, then verify each product page. Confirm whether the item is a part, kit, or assembly, its OEM number, quantity, FS 91 fitment, included pieces, and hardware required separately.\u003c\/p\u003e\n\n\u003ch2 class=\"h4\"\u003eInspect Shaft and Attachment Mount\u003c\/h2\u003e\n\n\u003cp\u003eThe cutting system depends on correctly matched drive and attachment parts. Examine the shaft tube, clutch connection, drive shaft, couplings, gearbox, cutting head or blade mount, guard, deflector, and fasteners for damage, looseness, wear, or abnormal vibration. Keep the area clean and install only the attachment approved for the exact FS 91 configuration. Do not use the trimmer or brushcutter with a damaged guard, loose head, worn coupling, or incorrectly installed cutting component.\u003c\/p\u003e\n\n\u003cp\u003eAllow the engine to cool before working near the cutting end. Secure the equipment and use appropriate personal protection. Follow STIHL instructions for the machine and its approved attachments. Do not force a guard, gearbox housing, threaded cutting head, or drive-shaft part during service. For gearbox, clutch, shaft, or attachment repairs outside your experience, consult a qualified outdoor-power-equipment technician.\u003c\/p\u003e\n\n\u003ch2 class=\"h4\"\u003eCheck Fuel and Starting Components\u003c\/h2\u003e\n\n\u003cp\u003eHard starting, unstable idle, loss of power, fuel leakage, or a recoil starter concern can involve several systems. Inspect the related area methodically before choosing replacement parts. Fuel symptoms may be linked to the tank, line, filter, vent, connection, seal, or carburetor. Starter service may involve the rope, pulley, spring, grip, housing, ignition, or fasteners. Use illustrated parts information and product listings to build an accurate FS 91 repair order.\u003c\/p\u003e\n\n\u003ch2 class=\"h4\"\u003eInspect Safety Controls\u003c\/h2\u003e\n\n\u003cp\u003eBefore using the FS 91 after service, check the throttle trigger, lockout, stop switch, handle mounts, shaft tube, guard, deflector, attachment hardware, and visible fasteners. Replace components that are cracked, loose, missing, damaged, or not functioning normally. Follow STIHL operating and service information for the exact equipment configuration. Do not operate the machine until all controls, guards, and cutting-attachment components are correctly installed.\u003c\/p\u003e\n\n\u003ch3 class=\"h5\"\u003eRequest FS 91 Fitment Help With the Right Details\u003c\/h3\u003e\n\n\u003cp\u003eIf you cannot locate a component, provide the complete FS 91 model designation, serial number, OEM reference if known, and a photo or clear description of the part’s location. Specify whether the repair concerns the engine, controls, shaft, gearbox, or cutting attachment. This information helps narrow the search, while final fitment should be checked against the product listing and illustrated parts information.\u003c\/p\u003e\n\n\u003ch3 class=\"h5\"\u003eUse Qualified Service for Complex Repairs\u003c\/h3\u003e\n\n\u003cp\u003eInternal engine, fuel-system, ignition, clutch, gearbox, drive-shaft, and safety repairs can require special tools and experience. A parts catalog helps identify items but does not diagnose mechanical faults. For repairs beyond routine maintenance or your skill level, use a qualified outdoor-power-equipment or small-engine technician.\u003c\/p\u003e\n\n\u003ch2 class=\"h4\"\u003eFS 91 Parts FAQ\u003c\/h2\u003e\n\n\u003ch3 class=\"h5\"\u003eHow do I choose the correct FS 91 part?\u003c\/h3\u003e\n\n\u003cp\u003eUse the original OEM number whenever possible. If you do not have the number, use the exact model version, serial information, illustrated parts diagram, and component location.\u003c\/p\u003e\n\n\u003ch3 class=\"h5\"\u003eCan I use an FS 90 or other STIHL trimmer part on an FS 91?\u003c\/h3\u003e\n\n\u003cp\u003eDo not assume compatibility. Confirm the OEM reference and stated FS 91 application because shafts, controls, guards, gearboxes, and attachments can vary by model and version.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eSTIHL is a registered trademark of its respective owner. References to STIHL and FS 91 identify genuine branded parts and compatible equipment applications.\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"stihl-oem-clutch-housing-41800801819-for-fs89-fs91-fs111-fs131-ht102-ht103-ht133","title":"STIHL OEM Clutch Housing 41800801819 for FS89 FS91 FS111 FS131 HT102 HT103 HT133","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGenuine STIHL OEM Clutch Housing 4180 080 1819\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBrand new genuine STIHL OEM clutch housing, part number \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4180 080 1819\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed to securely support the clutch assembly while providing reliable power transfer and long-lasting durability. Manufactured to OEM specifications for precise fitment and dependable performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompatible with the following STIHL products:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFS 89, FS 89 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFS 91, FS 91 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFS 111, FS 111 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFS 131, FS 131 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eKM 111 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eKM 131, KM 131 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHT 102, HT 103\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHT 131, HT 133\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCondition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e STIHL\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eOEM Part Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4180 080 1819\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eType:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clutch Housing\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eIncluded:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e One STIHL clutch housing, exactly as shown in the photos.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSHIPS THE SAME DAY OR NEXT BUSINESS DAY\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePLEASE NOTE: USPS OFTEN SKIPS THE INITIAL ACCEPTANCE SCAN AT THE POST OFFICE, SO TRACKING MAY NOT UPDATE IMMEDIATELY. IT CAN TAKE SOME TIME UNTIL THE PACKAGE REACHES THE FIRST DISTRIBUTION CENTER AND RECEIVES ITS FIRST SCAN.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease verify your part number before purchase to ensure compatibility. If you are unsure, send your equipment model and serial number and I will gladly help confirm fitment.\u003c\/span\u003e\u003c\/p\u003e","brand":"STIHL","offers":[{"title":"Default Title","offer_id":58283559944456,"sku":"EB-126805223794","price":91.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/4079\/7192\/files\/41800801819_01.png?v=1785084727"},{"product_id":"stihl-oem-cylinder-cover-41800801606-41800801609-for-fs89-fs131-fs311-etc","title":"STIHL OEM Cylinder Cover 41800801606 (41800801609) for FS89 FS131 FS311 etc.","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGenuine STIHL OEM Cylinder Cover 4180 080 1606\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBrand new genuine STIHL OEM cylinder cover, part number \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4180 080 1606\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Also referenced as part number \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4180 080 1609\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Manufactured to OEM specifications for precise fitment, dependable protection, and long service life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompatible with the following STIHL products:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFS 89, FS 89 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFS 91, FS 91 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFS 111, FS 111 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFS 131, FS 131 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFS 311\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFR 131 T\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eKM 111 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eKM 131, KM 131 R\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHT 102, HT 103, HT 105\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHT 130, HT 131, HT 133, HT 134, HT 135\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCondition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e STIHL\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eOEM Part Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4180 080 1606\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eReference Part Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4180 080 1609\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eType:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cylinder Cover\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eIncluded:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e One STIHL cylinder cover, exactly as shown in the photos.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSHIPS THE SAME DAY OR NEXT BUSINESS DAY\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePLEASE NOTE: USPS OFTEN SKIPS THE INITIAL ACCEPTANCE SCAN AT THE POST OFFICE, SO TRACKING MAY NOT UPDATE IMMEDIATELY. IT CAN TAKE SOME TIME UNTIL THE PACKAGE REACHES THE FIRST DISTRIBUTION CENTER AND RECEIVES ITS FIRST SCAN.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease verify your part number before purchase to ensure compatibility. If you are unsure, send your equipment model and serial number and I will gladly help confirm fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ctable xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\" cellspacing=\"0\" cellpadding=\"0\" dir=\"ltr\" border=\"1\" style=\"table-layout: fixed; font-size: 10pt; font-family: Arial; width: 0px; border-collapse: collapse; border: none;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"94\"\u003e\n\u003ccol width=\"90\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"STIHL","offers":[{"title":"Default Title","offer_id":58283560108296,"sku":"EB-127578370006","price":39.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/4079\/7192\/files\/57_e9c9f0b7-a522-4dac-a9ac-a7150bf183cf.png?v=1784755570"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/4079\/7192\/collections\/category_fs89_fs91_fs131_01_8f64c909-6276-476d-85ea-a30a7bb22964.png?v=1785963913","url":"https:\/\/timpartsshop.com\/collections\/fs-91.oembed","provider":"TimPartsShop","version":"1.0","type":"link"}