{"product_id":"husqvarna-577830401-tool-less-bar-adjuster-pin-kit-replacement-chainsaw-guide-bar-adjustment-component","title":"Husqvarna 577830401 Tool-Less Bar Adjuster Pin Kit – Replacement Chainsaw Guide Bar Adjustment Component","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"LR5Y_W_content markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 577830401\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Chainsaw Replacement Parts \u0026amp; Cutting Accessories\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Tool-Less Bar Adjuster Pin Kit – Replacement Chainsaw Guide Bar Adjustment Component\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eHusqvarna 577830401 Tool-Less Bar Adjuster Pin Kit\u003c\/strong\u003e is a replacement guide bar adjustment component designed for compatible \u003cstrong\u003eHusqvarna chainsaws equipped with the applicable tool-less bar adjustment system\u003c\/strong\u003e. The adjuster pin functions within the bar-adjustment mechanism to help position the guide bar and support proper saw-chain tension adjustment. It is suitable for replacing a bent, worn, broken, seized, damaged, missing, or otherwise unserviceable adjuster pin assembly when Husqvarna part number 577830401 is specified.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2 dir=\"auto\"\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 577830401\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Husqvarna\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Tool-Less Bar Adjuster Pin Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Replacement Guide Bar Adjustment Component\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chainsaws\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Tool-Less Guide Bar \u0026amp; Chain Tensioning System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Guide Bar Positioning \u0026amp; Chain Tension Adjustment Support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Adjuster Pin Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2 dir=\"auto\"\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement \u003cstrong\u003etool-less bar adjuster pin kit\u003c\/strong\u003e for compatible Husqvarna chainsaws\u003c\/li\u003e\n\u003cli\u003eDesigned for use with the applicable \u003cstrong\u003etool-less guide bar adjustment system\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHelps position the guide bar during saw-chain tension adjustment\u003c\/li\u003e\n\u003cli\u003eSupports controlled guide bar movement within the applicable adjustment mechanism\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper interaction between the bar and chain-tensioning system\u003c\/li\u003e\n\u003cli\u003eCan help restore adjustment operation when the original pin becomes worn, bent, seized, or damaged\u003c\/li\u003e\n\u003cli\u003eSupports proper saw-chain tensioning when all associated adjustment components are functioning correctly\u003c\/li\u003e\n\u003cli\u003eSuitable for replacing a \u003cstrong\u003ebent, broken, worn, stripped, seized, damaged, or missing\u003c\/strong\u003e bar adjuster pin\u003c\/li\u003e\n\u003cli\u003eUseful for guide bar mounting-system and chain-tensioning repairs\u003c\/li\u003e\n\u003cli\u003eDirect replacement option when \u003cstrong\u003eHusqvarna part number 577830401\u003c\/strong\u003e is specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2 dir=\"auto\"\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible Husqvarna chainsaws\u003c\/li\u003e\n\u003cli\u003eTool-less guide bar adjustment systems\u003c\/li\u003e\n\u003cli\u003eTool-less chain-tensioning assemblies\u003c\/li\u003e\n\u003cli\u003eGuide bar positioning mechanisms\u003c\/li\u003e\n\u003cli\u003eGuide bar mounting assemblies\u003c\/li\u003e\n\u003cli\u003eChain tension adjustment systems\u003c\/li\u003e\n\u003cli\u003eChainsaw cutting-system maintenance\u003c\/li\u003e\n\u003cli\u003eGuide bar adjustment repair\u003c\/li\u003e\n\u003cli\u003eReplacement of damaged adjuster pin components\u003c\/li\u003e\n\u003cli\u003eApplications specifying \u003cstrong\u003eHusqvarna 577830401\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2 dir=\"auto\"\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify \u003cstrong\u003epart number 577830401\u003c\/strong\u003e before ordering\u003c\/li\u003e\n\u003cli\u003eConfirm compatibility with your specific Husqvarna chainsaw model and bar-adjustment configuration\u003c\/li\u003e\n\u003cli\u003eThe supplied product information identifies this component as a \u003cstrong\u003eTool-Less Bar Adjuster Pin Kit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThis part should not be assumed compatible with chainsaws using a conventional \u003cstrong\u003escrew-type, side-access, front-access, or other bar-adjustment system\u003c\/strong\u003e unless specifically confirmed\u003c\/li\u003e\n\u003cli\u003eBecause this component is identified as a \u003cstrong\u003ekit\u003c\/strong\u003e, the exact quantity and type of individual pieces included are not identified in the supplied product information\u003c\/li\u003e\n\u003cli\u003eDo not assume the kit includes a complete \u003cstrong\u003echain tensioner, adjustment knob, clutch cover, guide bar, chain, sprocket, fasteners, washers, gears, or additional mounting hardware\u003c\/strong\u003e unless specifically stated\u003c\/li\u003e\n\u003cli\u003eThe exact \u003cstrong\u003epin dimensions, thread configuration, material, finish, adjustment travel, mounting interface, and associated hardware specifications\u003c\/strong\u003e are not identified in the supplied product information\u003c\/li\u003e\n\u003cli\u003eCompare the original adjuster pin's \u003cstrong\u003epart number, shape, dimensions, mounting location, engagement point, orientation, and interface with the guide bar and adjustment mechanism\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSimilar-looking bar adjuster components can differ between chainsaw models and tensioning-system designs\u003c\/li\u003e\n\u003cli\u003eInspect the guide bar's \u003cstrong\u003eadjustment hole or slot\u003c\/strong\u003e for wear, deformation, packed debris, or damage that could prevent correct engagement with the adjuster pin\u003c\/li\u003e\n\u003cli\u003eInspect the complete adjustment mechanism for \u003cstrong\u003edamaged gears, worn threads, broken components, excessive play, contamination, or binding\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheck the guide bar, chain, bar studs, mounting surfaces, clutch cover, drive sprocket, and associated retention components during service\u003c\/li\u003e\n\u003cli\u003eIf the original adjuster pin bent or broke, determine whether the guide bar or adjustment mechanism was \u003cstrong\u003ebinding, incorrectly assembled, overtightened, contaminated, or forced beyond its intended adjustment range\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDo not force the adjustment mechanism if the guide bar does not move freely; identify and correct the cause of the restriction first\u003c\/li\u003e\n\u003cli\u003eNever use the bar-adjustment mechanism to compensate for an \u003cstrong\u003eincorrect chain, incorrect guide bar, severely stretched chain, damaged bar, or incompatible cutting attachment\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSaw-chain tension should be adjusted according to the chainsaw manufacturer's instructions; a chain that is too loose can derail, while excessive tension can accelerate wear of the \u003cstrong\u003echain, guide bar, sprocket, bearings, and adjustment components\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMake sure the adjuster pin is properly engaged with the corresponding guide bar interface before securing the bar or operating the chainsaw\u003c\/li\u003e\n\u003cli\u003eAfter adjusting chain tension, ensure the guide bar is correctly secured according to the applicable chainsaw procedure\u003c\/li\u003e\n\u003cli\u003eDo not \u003cstrong\u003egrind, drill, bend, file, weld, heat, reshape, alter threads, or otherwise modify\u003c\/strong\u003e the adjuster pin or associated components to force compatibility\u003c\/li\u003e\n\u003cli\u003eThis listing is for the \u003cstrong\u003etool-less bar adjuster pin kit\u003c\/strong\u003e; do not assume that the \u003cstrong\u003eguide bar, saw chain, clutch cover, sprocket, bar nuts, adjustment knob, complete tensioner assembly, or other cutting-system components\u003c\/strong\u003e are included unless specifically stated\u003c\/li\u003e\n\u003cli\u003eChainsaw cutting components are extremely sharp; wear appropriate \u003cstrong\u003ecut-resistant gloves and eye protection\u003c\/strong\u003e when servicing the guide bar and saw chain\u003c\/li\u003e\n\u003cli\u003eShut off the chainsaw, allow the engine or motor to stop completely, engage appropriate safety precautions, and disconnect the applicable power source or spark plug before servicing the bar-adjustment system\u003c\/li\u003e\n\u003cli\u003eAfter installation, verify proper \u003cstrong\u003eadjuster engagement, guide bar movement, chain tension, bar retention, chain movement, component clearance, and overall cutting-system operation\u003c\/strong\u003e before returning the chainsaw to normal service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden has-[\u0026gt;_:empty]:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Husqvarna","offers":[{"title":"Default Title","offer_id":53882054902123,"sku":"577830401","price":10.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/577830401.jpg?v=1789822247","url":"https:\/\/generalsprayers.com\/products\/husqvarna-577830401-tool-less-bar-adjuster-pin-kit-replacement-chainsaw-guide-bar-adjustment-component","provider":"GeneralSprayers","version":"1.0","type":"link"}